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SOLUTION: can someone help me with this please (1/2x-10)(1/2x+10) thanks a lot.
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Question 73594
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can someone help me with this please (1/2x-10)(1/2x+10)
thanks a lot.
This question is from textbook
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checkley75(3666)
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(1/2x-10)(1/2x+10)
1/2x*1/2x=1/4x^2
1/2x*10=5x
1/2x*-10=-5x
-10*10=-100 now combine all these terms & we get
(1/4x^2-100) bwcause the 5x & the -5x cancel out.