Question

Fill in the blank to give a true statement.
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Answer 1

x² + 3x - 40 = (x - 5)(x + 8)

x + 8 goes into the blank.

Explanation:

`\frac{a}{ {x}^(2) + 3x - 40 } = (1)/(x - 5)`

`(a)/((x - 5)(x + 8)) = (1)/( x - 5)`

`(x + 8)/((x - 5)(x + 8)) = (1)/(x - 5)`

`a = x + 8`

x + 8 goes into the blank.