nanmaureen22 nanmaureen22

05-05-2017
Mathematics

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What is the solution set of y = x2 + 2x + 7 and y = x + 7?

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Аноним Аноним

11-05-2017

The correct answer is
y=x²+2x+7
y=x+7

==>x²+2x+7=x+7
==>x²+x=0
==>x(x+1)=0
==>(x=0 and y=7) or (x=-1 and y=-1+7=6)

Sol={(0,7),(-1,6)}

Hope this helps!

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