3 years ago

Find the value or values of y in the quadratic equation y2 + 4y + 4 = 7

Mathematics

2 answers:

Tema [17]3 years ago

6 0

Hello,

y²+4y+4=7
==>(y+2)²-7=0
==>(y+2-√7)(y+2+√7)=0
==>y=-2+√7 or y=-2-√7

mafiozo [28]3 years ago

4 0

Hey man this is how i did it. I think it's right. Not sure

y²+4y+4=7

Then (y+2)²-7=0

Separate (y+2-√7)(y+2+√7)=0

Simplify y=-2+√7 or y=-2-√7

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