Question

12(3х+8)+5(2х-1) при х=2

Answer 1

12(3x+8)+5(2x-1)

36x+96+10x-5

36*2+96+10*2-5=183

Answer 2

To evaluate the expression 12(3x + 8) + 5(2x - 1) when x = 2, we substitute the value of x into the expression and perform the calculations.

Let's substitute x = 2 into the expression:

12(3(2) + 8) + 5(2(2) - 1)

Simplifying inside the parentheses:

12(6 + 8) + 5(4 - 1)

12(14) + 5(3)

Now, perform the multiplications:

168 + 15

Finally, add the numbers:

168 + 15 = 183

Therefore, when x = 2, the expression 12(3x + 8) + 5(2x - 1) evaluates to 183.