the answer is [6m-7]^2 right?
when its factored
2007-04-13 00:52:11 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
answer is 1.66667
or 7/6
use the quadratic formula....then yep.. its right....
haha. yep.. its right
2007-04-13 01:11:49 · answer #1 · answered by Jami 3 · 0⤊ 0⤋
36m² - 84m + 49
The middle term is -84m
Find the sum of the middle term
Multiply the first term 36 times the last term 49 equals 1764 and factor
Factors of 1764 =
1 x 1764
2 x 882
3 x 588
4 x 441
6 x 294
7 x 251
9 x 196
12 x 147
14 x 126
18 x 98
21 x 84
28 x 63
36 x 49
42 x 42. . .<=. .use these factors
- 42 and - 42 satisfy the sum of the middle term
insert - 42m and - 42m into the equation
36m² - 84m + 49
Group Factoring
36m² - 42m - 42m + 49
6m(6m - 7) - 7(6m - 7)
(6m - 7)(6m - 7)
- - - - - - - - - - - - -s-
2007-04-13 01:51:50 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
Yes. The root is m=7/6 in your factorization. Substitute it into the original equation: 36*(7/6)^2 - 84*(7/6) + 49 does equal zero.
2007-04-13 01:13:14 · answer #3 · answered by fcas80 7 · 0⤊ 0⤋
36m^2 - 84m + 49
= (6m)^2 -2*6*7m + 7^2 =
(6m - 7)^2
Yes. It is.
2007-04-13 02:06:33 · answer #4 · answered by theWiseTechie 3 · 0⤊ 0⤋
(6m-7)(6m-7)
36m^2-42m-42m+49
36m^2-84m+49
Yes, that is correct!
2007-04-13 02:26:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋