serinasantiago serinasantiago

09-06-2020
Mathematics

contestada

Which equation has the same solution as x^2+15+6=-2 ?

A. (x+7.5)^2=48.25
B. (x-7.5)^2=-64.25
C. (x-7.5)^2=48.24
D. (x+7.5)^2=64.25

Respuesta :

azmiikhwan141203 azmiikhwan141203

09-06-2020

the answer for this question is A. (x+7.5)^2=48.25

Step-by-step explanation:

(x+7.5)^2=48.25

x^2 + 7.5x + 7.5x + (7.5^2) = 48.25

x^2 + 15x + 56.25 =48.25

x^2 + 15x + ( 56.25 - 48.25 ) = 0

x^2 + 15x + 8 = 0

and you forget to put 'x' at 15 on the question....

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