Exam 5: Polynomials and Polynomial Functions

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Solve. -The outside dimensions of a picture frame are 38 cm38 \mathrm {~cm} and 31 cm31 \mathrm {~cm} . The area of the picture inside the frame is 690 square centimeters. Find the width of the frame.  Solve. -The outside dimensions of a picture frame are  38 \mathrm {~cm}  and  31 \mathrm {~cm} . The area of the picture inside the frame is 690 square centimeters. Find the width of the frame.

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Factor the trinomial. - 15x2+8x1615 x ^ { 2 } + 8 x - 16

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Evaluate the polynomial function. -If f(x)=x2+9x+4f ( x ) = x ^ { 2 } + 9 x + 4 , find f(a)f ( a )

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Find all positive and negative integers b such that the trinomial is factorable. - x2+bx+7x ^ { 2 } + b x + 7

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Multiply. Assume that variables used as exponents represent positive integers. - (xa+7)(x2a9)\left( \mathrm { x } ^ { \mathrm { a } } + 7 \right) \left( \mathrm { x } ^ { 2 \mathrm { a } } - 9 \right)

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Multiply. - (5x+11y)2( 5 x + 11 y ) ^ { 2 }

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Simplify the polynomial by combining like terms. - 13y2+6y213 y ^ { 2 } + 6 y ^ { 2 }

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Use substitution to factor the polynomial completely. - 9x6+6x389 x ^ { 6 } + 6 x ^ { 3 } - 8

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Solve. -The area AA of a trapezoid with bases bb and BB and height hh is given by the formula A=12bh+12Bh.WriteA = \frac { 1 } { 2 } b h + \frac { 1 } { 2 } B h . W r i t e an equivalent equation by factoring the expression 12bh+12Bh\frac { 1 } { 2 } b h + \frac { 1 } { 2 } \mathrm { Bh } .

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Factor the polynomial completely. - 7(x3)276(x3)117 ( x - 3 ) ^ { 2 } - 76 ( x - 3 ) - 11

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Solve. -The longer leg of a right triangle is 14 inches longer than the other leg. Find the length of the two legs if the hypotenuse is 26 inches.

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Subtract. - (8x7+8x516)(18x5+4x7+16)\left( 8 x ^ { 7 } + 8 x ^ { 5 } - 16 \right) - \left( - 18 x ^ { 5 } + 4 x ^ { 7 } + 16 \right)

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Find the GCF of the list of monomials. -5, 15

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Simplify the polynomial by combining like terms. - 5+5 + 2-8

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Solve the equation. - 5x(8x5)=05 x ( 8 x - 5 ) = 0

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Factor the polynomial by grouping. - ac+5a2c10a c + 5 a - 2 c - 10

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Subtract. - (3x7+7x6+5)(6x7+19x6+14)\left( 3 x ^ { 7 } + 7 x ^ { 6 } + 5 \right) - \left( 6 x ^ { 7 } + 19 x ^ { 6 } + 14 \right)

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Fill in the blank with one of the words or phrases listed below. Fill in the blank with one of the words or phrases listed below.    -A is a polynomial with three terms. -A is a polynomial with three terms.

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Multiply. - (x+1)(x+11)( x + 1 ) ( x + 11 )

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For the given polynomial P(x) and the given c, use the remainder theorem to find P(c). - P(x)=x2+7x+2;3P ( x ) = x ^ { 2 } + 7 x + 2 ; 3

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