factoring help: 9z=10z^2?

2 ⤊

2007-02-01 03:23:51 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

9Z = 10Z²
10Z² - 9Z = 0
Z (10Z - 9) = 0
Z = 0 or Z = 9 /10

2007-02-01 03:52:55 · answer #1 · answered by Como 7 · 0⤊ 0⤋

10z^2 - 9z = 0
z(10z-9) = 0

2007-02-01 11:31:41 · answer #2 · answered by catarthur 6 · 0⤊ 0⤋

0 = 10zÂ²-9z
0 = z(10z-9)

z = 0 or 10z-9 = 0
z = 0 or z = 0.9

2007-02-01 11:30:00 · answer #3 · answered by bequalming 5 · 2⤊ 0⤋

Start by dividing zed into both sides, so 9 = 10 zed.
Now divide by 10 to get zed. .9 = zed. Bet you never thought it was this easy.

2007-02-01 11:37:11 · answer #4 · answered by obelix 6 · 0⤊ 0⤋

No factoring needed.

z = 9/10

2007-02-01 11:29:30 · answer #5 · answered by gebobs 6 · 0⤊ 2⤋