Question

What number should be added to both sides of the equation to complete the square?

x2 + 8x = 4

Answer 1

Answer:

x²+8x+4=0

(x²+2*x*4 +4²)-4²+4=0

(x+4)²-16+4=0

(x+4)²-12=0

(x+4)²=12

(x+4)=plus or minus √12

x+4 = plus or minus 2√3

therefore

x=-4+2√3 or x= -4-2√3

Step-by-step explanation:

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