btwarii btwarii

15-07-2021
Mathematics

contestada

complete the equation: x^2-14x + = ()^2

a. -14; x+14
b. -14; x-14
c. 49; x-7
d. 49; x+7

Respuesta :

AliceBrainly21 AliceBrainly21

15-07-2021

Answer:

C. 49, x-7

Step-by-step explanation:

(A+B)^2 = A^2 + 2AB + B^2

-14x = 2*A*B

where A=x

Therefore B=-7

and (x-7)^2=x^2-14x+49

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