Semester Exam

(x - 3)²

• 2x - 6

• x² -6x + 9

• x² - 3x - 6

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(x - 2)(x + 5)

• x² + 3x - 10

• x² - 10

• x² + 7x + 10

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(7x⁴ +7x³ -2) - (8x² -8x +9)

• 7x⁴ + 7x³ -8x² +8x -11

• -2x + 11

• 14x⁴ - 16x² -11

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Factor 8y² + 30y + 7

• (2y + 7)(4y + 1)

• 6y + 8

• 8(y² + 5y + 1)

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Factor x² -18x + 81

• (x - 9)²

• (x + 8)(x + 1)

• x(x - 18 + 81)

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Factor by grouping 64r³ + 56r² -56r -49

• (64 +56 -56 -49)(r³ + r² -r)

• (8r² - 7)(8r + 7)

• (64r³ + 56r²)- (56r -49)

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Find the GCF. 21z⁵ -42z⁴ + 6z³

• 3z³

• 7z

• 3z⁵

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Factor the expression.

x² - 49

• (x²)(49)

• (2x - 7)²

• (x + 7)(x - 7)

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Simplify 6x² + 13x²

• 19x²

• 19 + x²

• 7x

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Factor out the GCF.

9x² - 6x

• 3x (3x - 2)

• (9x²)(-6x)

• 3x²

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