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8 July, 09:30

7. Multiply the binomials: (x - 9) (x + 2)

a. x^2 - 7x - 18

b. x^2 - 11x - 18

c. x^2 - 7x + 18

d. x^2 + 7x - 18

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  1. 8 July, 11:31
    0
    the answer is a. x^2-7x-18

    first you distribute the x in the first equation getting you x^2 + 2x, then you distributed the - 9 getting - 9x-18. you then put those together, x^2+2x-9x-18. Finally you simplify to x^2-7x-18
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