evaluate using identity 36 square minus 40 square
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We have to find 36² - 40²
= (30 + 6)² - (30+10)²
= 30² + 6² + 2*30*6 - 30² - 10² - 2*30*10
= 36 + 360 - 100 - 600
= 396 - 700
= -304
= (30 + 6)² - (30+10)²
= 30² + 6² + 2*30*6 - 30² - 10² - 2*30*10
= 36 + 360 - 100 - 600
= 396 - 700
= -304
Anonymous:
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