Question

If m= 5x^2 + 7x - 4 and N = -3x^2 -4x + 5, then M - N

Answer 1

Question:

If M= 5x² + 7x - 4 and N = -3x² -4x + 5, then M - N

Given Information:

M= 5x²+ 7x - 4

N = -3x² -4x + 5

To Find :

M-N

Solution:

M-N = 5x²+7x-4-(-3x²-4x+5)

M-N = 5x²+7x-4+3x²+4x-5

M-N = 8x²+11x-9

M-N = x= 1.951 (or) -0.576

Formula used to find roots of equation:

x= -b+,-√ b²-4ac /2a