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PIT_PIT [208]
3 years ago
14

Which graph represents the solution set for the quadratic inequality x2 + 2x + 1 > 0

Mathematics
2 answers:
AnnyKZ [126]3 years ago
8 0

we have

x^{2}+2x + 1 > 0

we know that

x^{2}+2x+1=(x+1)^{2}

so

(x+1)^{2}> 0

two solutions

<u>first solution </u>

(x+1)> 0

x > -1

the first solution is the interval---------> (-1,∞)

<u>second solution</u>

-(x+1)> 0

-x-1> 0

-x> 1

x< -1

the second solution is the interval---------> (-∞,-1)

therefore

the solution is all real numbers except the number -1

the answer in the attached figure

GaryK [48]3 years ago
4 0
The answer is C x<16
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