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FACTORISE step by step plz(a)2 - (2a+3b)2 |
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Answer» a² - (2a + 3b)² = -3(a + b)(a + 3b) Step-by-step explanation: a² - (2a + 3b)² By USING identity x² - y² = (x + y)(x - y) Here x = a and y = 2a + 3b a² - (2a + 3b)² = (a + 2a + 3b)(a - 2a - 3b) = (3a + 3b)(-a - 3b) By taking 3 common from first bracket and -1 common from 2ND bracket, a² - (2a + 3b)² = -3(a + b)(a + 3b) Hope this helps! :) |
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