Question

Simplify the polynomial (7m+5)^2

Answer 1

`49 {m}^(2) + 70m + 25`

Solution,

( 7m + 5)^2

Using the formula:

`{(a + b)}^(2) = {a}^(2) + 2ab + {b}^(2)`

and expand the expression

= ( 7m)^2 + 2 • 7m • 5 + (5)^2

Evaluate the power

= 49m^2 + 2 • 7m • 5 + 25

Calculate the product

= 49m^2 + 70m + 25

Hope this helps...

Good luck on your assignment..