Question

Simplify the given expressions below.

I) 4x + 8 - 2x + 7


2) 2n ×5 ×2a


3) 6a power 5 over 3a power 2 ×2a
please work it out and clear​

Answer 1

Explanation:

1)
`\Rightarrow \: \sf \: 4x + 8 - 2x + 7`

Combine like terms

`\rightarrow \: \sf \: ( 4x - \textcolor{green}{2}x) + (7 + \textcolor{green}{8})`

Add 4x and 2x , 7 + 8

`\rightarrow \sf \: 2x + 15`

~Done~

2)
`\Rightarrow \sf 2n ×5 ×2a`

`\rightarrow \sf \:( 2n) (5) (2a)`

`\rightarrow \sf \: 20an`

~Done~