Question

10zto the power of 2 -140z+450

Answer 1

Do you know how to use the quadratic formula?

Answer 2

no I dont I have hard time taking it out

Answer 3

i cant factor its hard

Answer 4

Oh, I thought you wanted us to find the value of z. My bad.
First, factor the 10 out.

10z² - 140x + 450 = 10(z² - 14z + 45)

Now, factor z² - 14z + 45

Answer 5

ok take out the 10

Answer 6

Yeah, now it is easier to factor without 10. Can you factor z² - 14z + 45 ?

Answer 7

how would i figure out this one? and How do I give you a medal?

Answer 8

\[28z ^{2}+16z ^{2}+80z\]

Answer 9

Perhaps this link will help you.

http://www.gradeamathhelp.com/how-to-factor-polynomials.html

Answer 10

thank you very much let me look at it