Question

find the value of M if the value of the expression 2 x cube minus 5 x square + m x minus 7 is equal to 10 when x is equal to -1​

Answer 1

Answer:

-24.

Step-by-step explanation:

2x³-5x²+mx-7=10. {at x=-1,}

=> 2(-1)³-5(-1)²+m(-1)-7=10

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

=>-2-5-m=17

=>-7-m=17

=> -m=17+7

=> m=-24.