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Strike441 [17]
3 years ago
9

What number must you add to complete the square? x^2+6x=15

Mathematics
2 answers:
Andreyy893 years ago
5 0
To complete the square you must split the b term in half, then square that answer.

6 is the b term, half of 6 is 3, 3 squared is 9. You will add 9 to both sides of x^2 + 6x = 15

x^2 + 6x + 9 =  24
puteri [66]3 years ago
3 0
I believe it would be <span>3±2<span>6</span></span>
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