Question

Find the value of m if the value of the expression 2x*x*x – 5x*x + mx – 7 is equal to 10, when x = - 1.

Answer 1

Answer:

2x*x*x - 5x*x + mx - 7 = 10

2(-1 x -1 x -1) - 5(-1 x -1) + m(-1) -7 = 10

2 x -1 - 5 x 1 - 1m - 7 = 10

-2 - 5 - 7 - m =10

-14 -m = 10

-14 - 10 = m

therefore, m = -24

Answer 2

Answer:-24

Step-by-step explanation: