If A = 9x² - 4x - 5, B = 5x² + 3x - 8 and C = 4x² - 7x + 3 then find the value of B + C - A
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6x^2-6
Step-by-step explanation:
= 5x2 + 3x-8+4x2-7x + 3-(3x2-4x + 1)) On combining the like terms, = (5x2 + 4x2 + 3x-7x-8+ 3)-(3x2 – 4x + 1) = (9x2 -4x-5)- (3x2 – 4x +1) = 9x2 -4x-5-3x2 + 4x-1 = 9x2 – 3x2 – 4x + 4x – 5 -1 = 6x2-6Read more on Sarthaks.com - https://www.sarthaks.com/842651/if-a-3x-2-4x-1-b-5x-2-3x-8-and-c-4x-2-7x-3-then-find
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