Question

If x = 3 and y = 5, work out the value of
b) 2x2 + 3y2

Answer 1

`93`

Explanation:

Given:

If
`x=3` &
`y=5`, find
`2x^2+3y^2`

Solution:

Replace 3 with x and 4 with y:

`2(3)^2+3(5)^2`

`=2(9)+3(25)`

`=18+75`

`=93`

Answer 2

42

Explanation:

2*3*2+3*5*2=12+30=42