Question

Solve 2-9z by
17-4z. =4/5

Answer 1

write question crrectly with symbols

Answer 2

Step-by-step explanation:

I'm assuming you meant (2-9z)(17-4z) = 4/5.

1) Distribute the parenthesis (multiply it out)

2*17 = 34

2*-4z = -8z

-9z*17 = -153z

-9z*-4z = 35z^2

2) Rewrite the question

35z^2 - 153z - 8z +34 = 4/5

3) Cancel out any extra numbers

35z^2 -145z + 34 = 4/5

4) Subtract 34 by 4/5 to have zero on the right side

5) Plug the numbers into the quadratic formula. 35 is A, -145 is B, and  (34-4/5) is C.

6) I can't type the quadratic formula on here but if you google "quadratic formula" and hit "images" you can find it.

7) Hope this helps!