Factor 5(x - 2) - 9x(x - 2) HELP!?

2008-06-11 3:22 pm
I need help with homework?? help ASAP

回答 (12)

2008-06-11 3:26 pm
✔ 最佳答案
This is easy....

5x - 10 - 9x^2 + 18x
-9x^2 + 23x - 10
2008-06-11 4:05 pm
5(x - 2) - 9x(x - 2)
= (x - 2)(5 - 9x)
2008-06-11 3:31 pm
step 1 expand

= 5x - 10 - 9x squared + 18x
step 2 collect like terms

= -9x squared + 23x -10

step 3 take out negative

= - (9x squared - 23x + 10)

Step 4 factorise
= - (9x - 5)(x - 2)

Step 5 times everything by -1
=(-9x+5)(-x+2)

Rewrite to make look better
= (5-9x)(2-x)

TOP ANSWER LOL
2008-06-11 3:28 pm
5(x - 2) - 9x(x - 2) = -(9x^2 -23x +10) = -(9x^2 -18x - 5x +10)
= (9x-5)(2-x) = (x-2)(5-9x)
2008-06-11 3:27 pm
5(x - 2) - 9x(x - 2)
= 5x - 10 - 9x^2 + 18x
= -9x^2 + 23x - 10
= 9x^2 - 23x + 10
= (9x - 5)(x - 2)
2008-06-11 3:27 pm
(x-2)(5-9x)
2008-06-11 3:27 pm
[(x-2)] (5-9x)

get it? you take the (x-2) out, then just multiply that by (5-9x)
2008-06-11 3:27 pm
(5-9x)(x-2)
2008-06-11 3:26 pm
put the 5 and the 9x together since the (x-2) are the same for both:
the answer
= (5-9x)(x-2)
2008-06-11 3:26 pm
it'd b (5x-10)-(9x2+18)


The 9x2 is nine x SQUARED. you know the little two above it? you should probably ask your teacher for help because if i just tell you the answer your never going to get it.


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