Question

find the zeroes of x square+2x_15
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Answer 1

Answer:

3 and - 5

Step-by-step explanation:

${x}^{2} + 2x - 15$

First factorize it.

${x}^{2} + 5x - 3x - 15$

$x(x + 5) - 3(x + 5)$

$(x - 3)(x + 5)$

So rhe zeroes are

$x - 3 = 0 \\ x = 3$

And

$x + 5 = 0 \\ x = - 5$