Factor. 9z^2-18z-7 square square

Question

Factor. 9z^2-18z-7 square square

Answer 1

To factor the quadratic expression

, we need to find two numbers that multiply to give the product of the coefficient of

term (9) and the constant term (-7), which is -63, and add up to the coefficient of the

term, which is -18.The two numbers that satisfy these conditions are -21 and 3, since:-21 * 3 = -63-21 + 3 = -18Now, we can rewrite the middle term (-18z) using these two numbers:

Next, we group the terms:

Factor out the greatest common factor from each group:

Now, we can factor out the common binomial factor

:

Therefore, the factored form of

is:

Question

Factor. 9z^2-18z-7 square square

Solution

Resposta