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12-01-2020
Mathematics

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Solve the quadratic equation by completing the square . x ^ 2 + 4x - 3 = 0

A) x=4 pm sqrt 7

B) x=2 pm sqrt 7

C)x=-4 pm sqrt 7

D) x=-2 pm sqrt 7

Solve the quadratic equation by completing the square x 2 4x 3 0 A x4 pm sqrt 7 B x2 pm sqrt 7 Cx4 pm sqrt 7 D x2 pm sqrt 7 class=

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surjithayer10otahza surjithayer10otahza

12-01-2020

Answer:

D

Step-by-step explanation:

x²+4x=3

add 4 both sides

x²+4x+4=7

(x+2)²=7

x=-2±√7

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