Question

28ab+(2a-7b)^2 При a=5;b=1

Answer 1

Ответ:

28*5 + 9= 149

пиавильний ответ

Answer 2

Ответ:

28*5*1+(2*5-7*1)²= 140+(10-7)²=140+(100-49)=140+51= 191

Объяснение:

Вроде так.....

Answer 3

To evaluate the expression 28ab + (2a - 7b)^2 with a = 5 and b = 1, we can substitute the given values into the expression and perform the calculations.

Let's start by substituting a = 5 and b = 1 into the expression:

28ab + (2a - 7b)^2 = 28(5)(1) + (2(5) - 7(1))^2 = 28(5) + (10 - 7)^2 = 140 + (10 - 7)^2 = 140 + (3)^2 = 140 + 9 = 149

Therefore, when a = 5 and b = 1, the value of the expression 28ab + (2a - 7b)^2 is 149.