Simplify by using the order of operations.7 ? 6 - 2 ? 5 + 9 ? 4

A. -68
B. 68
C. 78
D. -78

Answer: B

Mathematics

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Graph.9x2 + 6y2 = 18 

A.

B.

C.

D.

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Factor completely. If the polynomial is prime, state so.512x3y6 - 72x6y3

A. 8x3y3(4y + 3x)(16y2 - 12xy + 9x2) B. 8x3y3(4y - 3x)(16y2 + 12xy + 9x2) C. 8(4xy2 + 3x2y)(16x2y4 - 12x3y3 + 9x4y2) D. 8x3y3(64y3 - 9x3)

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Multiply.-4 ? (-4) ? 2 ? (-2) ? 3 ? (-5) ? (-3)

A. -13 B. -2880 C. 963 D. 2880

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Factor by grouping.15x2 - 29xy + 12y2

A. (5x - 3y)(3x - 4y) B. (5x + 3y)(3x - 4y) C. (15x - 3y)(x - 4y) D. (5x - 3)(3x - 4)

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