What value of g makes the equation true (x-3)(x+5)=x^2+gx-15
Mathematics · High School · Wed Jan 13 2021
llm
Answered on
We have,
(x-3)(x+5)=x²+gx-15
Multiplying, we get
x² - 3x + 5x -15 = x² + gx - 15
x² + 2x - 15 - x² + 15 = gx
2x = gx
Dividing both sides by x, we get
2x/x = gx/x
2 = g
Hence, for g = 2 , given equation is true