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OpenStudy (anonymous):
How do I multiply (5+x)(5+2x). Help is greatly needed
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OpenStudy (lilg132):
5 * 5 = 25 5 * 2x = 10x x * 5 = 5x x * 2x = 2x^2 so 2x^2 + 5x + 10x + 25 which is now 2x^2 + 15x + 25 remember to click good answer
OpenStudy (anonymous):
Use the parrot beak technique|dw:1323789751994:dw| the lines of the beak are the numbers you have to multiply: so 5*5 + x*5 + x*5 + x*2x
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