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1) Multiply. (x + 9)(x - 9) x2 + 18x - 81 x2 - 81 x2 - 18x - 81 x2 + 81 2) Multiply. (x + 8) (x + 3) x2 + 11x + 24 x2 - 5x + 24 x2 + 11x + 11 x2 + 24 25x - 9x 20x - 8 3) What is the area of the rectangle below? 25x2 - 20x 25x2 - 4 4) Multiply. (x + 8) (x - 7) x2 - 56 x2 + x - 56 x2 + x + 1 x2 + 15x - 56 5) Multiply. (x + 6)2 x2 + 36 x2 + 12x + 12 x2 + 12x + 36 x2 - 36 6. Multiply. (b + 3)3 b3 + 9 b3 + 18b2 + 18b + 27 b3 + 27 b3 + 9b2 + 27b + 27 7) Multiply. (x - 10) (x + 4) x2 - 14x - 40 x2 - 6x - 40 x2 - 6x + 40 x2 - 40 8. What is the coefficient of a2 after you multiply (a + 9)(a - 12). 9) Multiply. (b - 8)2 b2 - 64 b2 + 16b + 64 b2 - 16b + 64 b2 + 64 10) Multiply. (x + 5) (x - 7) x2 - 35 x2 - 2x - 35 x2 + 12x - 35 x2 - 12x - 35 |