SOLUTION: in parallelograms ABCD abovewhat is the value of x? 10x (25x-30)

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Question 154099: in parallelograms ABCD abovewhat is the value of x?
10x (25x-30)
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
10x (25x-30)
Distribute:
250x%5E2-300x=0 --------------------> working eqn
Divdide the whole eqn by 250;
cross%2825%29x%5E2%2Fcross%28250%29-cross%28300%291.2x%2Fcross%28250%29=0%2Fcross%28250%29
x%5E2-1.2x=0
x%28x-1.2%29=0
x=1.2
Check it out via working eqn:
250%281.2%29%5E2-300%281.2%29=0
250%281.44%29-360=0
360-360=0
0=0
Thank you,
Jojo