Question

A) find the value of 2x+y wehn x =4 and y =3 b) find the value of a^2 + b when a = -2 and b = 5

Answer 1

a. 11

b. 9

Solution,

a. Given,

X=4

y=3

Now,

`2x + y \\ = 2 * 4 + 3 \\ = 8 + 3 \\ = 11`

b. Given,

a=-2

b=5

Now,

`{a}^(2) + b \\ = {( - 2)}^(2) + 5 \\ = 4 + 5 \\ = 9`

hope this helps...

Good luck on your assignment..