What number should be added to both sides of the equation to complete the square? X^2-10=7
1 answer:
I must assume that you meant <span>X^2-10x =7. If that is indeed the case, then:
</span>X^2-10x =7 => x^2 -10x + 25 - 25 = 7, so that (x-5)^2 = 32 (Add 25, then
subtract 25)
Then x-5 = plus or minus sqrt(16)sqrt(2) = 4sqrt(2).
Then x = 5 plus or minus 4 sqrt(2) (answers)
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Here ya go, I hope this helps :)
The answer: y= 6(x-7/2)^2-137/2
All of the above options are true, so the answer is choice D.
3x+7 = 51-x
4x = 44
x = 11
answer
x = 11