Question

what is the answer to (12b^2+1)-(-8b^2)

Answer 1

Hey there!

Let's solve this problem step by step!

$(12b^{2} +1)-(-8b^{2} )$

Remove the parenthesis between the first sum.

$12b^{2} +1-(-8b^{2} )$

Work out the parenthesis that are left. Remember that multiplying a negative by a negative makes you end up with a positive outcome.

$12b^{2} +1+8b^{2}$

And finally collect the terms. We can only add the $b^{2}$. We then find the following solution

$20b^{2} +1$

~Hope this helps you!

Answer 2

Use the formula $c-(-d)=c+d$, where c and d are expressions.

Thus,

$(12b^2+1)-(-8b^2)=12b^2+1+8b^2=20b^2+1$

This is the final simplified expression.