Question

use remainder theorem to find (x^2+8x-5) ÷ (2x+1)
class 9 maths​

Answer 1

Answer:

-37/4

Step-by-step explanation:

equate 2x+1 to zero:

2x+1=0

solve for x:

2x+1=0

2x=-1

×= -1/2 or -0.5

substitute x= -1/2 into f(x)

f(x)= x² + 8x -5

f(-1/2) = (-1/2)² + 8(-1/2) -5

= -1/4 + (-4) -5

= -1/4 -4 -5

=-1/4 -9

= -1/4 - 9/1

= (-1 -36)/4

= -37/4