"^" is used online to indicate an exponent. "complete the square"?
Subtract 40 from both sides.
x^2 - 12 - 40 = 0
From there you should be able to factor. However, using the possible factors of -40 (4,10; 8,5; etc.), I don't see how that will give -12 as a middle term. Do you have a typo?
Samantha needs to solve the equation
x2 - 12x = 40.
What must she do to each side of the
equation to complete the square?
1 answer
2 answers