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8.) What is the product of (x+8) and (x - 5) ?
a.
x2 + 3x - 40
b. x2 - 3x - 40
c. x2 + 11x - 40
d. x2 - 40

Sagot :

(x + 8)(x - 5)

= x (x - 5) + 8(x - 5)

= x² - 5x + 8x - 40

= x² + 3x - 40 (a)
The answer is A ,x2+3x-40
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