Question

Simplify the expression 2 (x2-3x )
− 5 ( 7x− 4 ) and then find the value when x = −1​

Answer 1

Answer:

2(x²-3x)-5(7x-4).

2x²-6x-35x+20. (Because -×-=+).

2x²-41x+20. (Because -×-=+ & largest number is important).

x=-2.

2(-2)²-41(-2)+20.

2(4)+82+20. (Because -×-=+).

8+82+20.

110.

I think this is your answer.

Step-by-step explanation:

Answer 2

Answer:

110

Step-by-step explanation:

Hope it helps you . 110 is your answer .