Question

10(3а-в)-17(2а+в) при а=3 в=4

Answer 1

10 (3*3-4)-17 (2*3+4)=10*5-17*10=50-170=-120

Answer 2

To evaluate the expression 10(3a - b) - 17(2a + b) when a = 3 and b = 4, we substitute the given values into the expression and perform the calculations.

Replacing a with 3 and b with 4, we have:

10(3(3) - 4) - 17(2(3) + 4)

Simplifying the inner parentheses:

10(9 - 4) - 17(6 + 4)

Performing the multiplications and additions:

10(5) - 17(10)

50 - 170

Calculating the subtraction:

-120

Therefore, when a = 3 and b = 4, the expression 10(3a - b) - 17(2a + b) evaluates to -120.