I will do it without "words"
x^2 - 8x = 10
x^2 - 8x + 16 = 10+16
(x-4)^2 = 26
x-4 = ± √26
x = 4 ± √26
you stopped and didn't finish it
Where was your "completed square" ?
SOLVE THE FOLLOWING EQAUTION BY COMPLETING THE SQUARE:
3. xsquared - 8x - 10 = 0
xsqaured -8x=10
xsquared-8x+(8/2)sqaured=10+(8/2)sqaured
xsquared-8x+16=26
Answer: xsqaured-8x+16=26
WHAT DID I DO WRONG?
6 answers
i don't know what that means
is that the answer
Are you taking this topic in a regular class-room setting?
If you are studying the topic of "completing the square", which was part of the instructions to your problem, you MUST know what this means.
If you are studying the topic of "completing the square", which was part of the instructions to your problem, you MUST know what this means.
yes, that is the answer.
you could say
x = 10+√26 OR x = 10 - √26
or you could convert to decimals with your calculator.
Leaving it in square root form is considered exact, while as soon as you change square roots to decimals you are dealing with approximations.
you could say
x = 10+√26 OR x = 10 - √26
or you could convert to decimals with your calculator.
Leaving it in square root form is considered exact, while as soon as you change square roots to decimals you are dealing with approximations.
that should have said:
you could say
x = 4+√26 OR x = 4 - √26
you could say
x = 4+√26 OR x = 4 - √26
4 answers