Question

$frac{x^{2}-6x+9 }{x-3}$-$frac{4x^{2}-9 }{2x+3}$
если x=3,77

Answer 1

(x² - 6x + 9)/(x - 3) - (4x² - 9)/(2x + 3) = (x - 3)²/(x - 3) - (2x - 3)(2x + 3)/(2x + 3) = x - 3 - 2x + 3 = -x

x = 3.77

-x = -3.77