How do I solve x2+15=-10x-10?

How do I solve for x?
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1 Answer

x2 + 15 = - 10x - 10

x2 +10x + 15 + 10 = 0

x2 +10x + 25 = 0

x2 + 2 *x * 5 + 5 * 5 = 0

[ it is in the form of (a + b) 2

(x + 5 )2 = 0

(x + 5) (x + 5 ) = 0

x + 5 = 0 or x + 5 = 0

x = - 5 or x = - 5

by Level 4 User (5.5k points)

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