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leonid [27]
3 years ago
6

X^2+12x=-36 solve for x

Mathematics
2 answers:
masya89 [10]3 years ago
6 0

Answer:

x = -6  (multiplicity 2)

Step-by-step explanation:

x^2 + 12x = -16.

Rearranging:-

x^2 + 12x + 36 = 0

We can factor this. Note +36 = +6 * +6.

So (x + 6)(x + 6) = 0

x = -6  (multiplicity 2).

V125BC [204]3 years ago
5 0

Answer:

x = - 6

Step-by-step explanation:

rearrange into standard form : ax² + bx + c = 0 : a ≠ 0

add 36 to both sides

x² + 12x + 36 = 0 ← in standard form

(x + 6)(x + 6) = 0 ← in factored form

(x + 6)² = 0, hence

x + 6 = 0 ⇒ x = - 6



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