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chubhunter [2.5K]
4 years ago
8

X2+5x=3x+11 and solve by completing the square

Mathematics
1 answer:
Butoxors [25]4 years ago
7 0
x^2+5x=3x+11\\
x^2+2x-11=0\\
x^2+2x+1-12=0\\
(x+1)^2=12\\
x+1=\sqrt{12} \vee x+1=-\sqrt{12}\\
x=-1+2\sqrt3 \vee x=-1-2\sqrt3
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