Question

Someone please help Will mark brainliest.

Answer 1

Answer:

B

Step-by-step explanation:

5t^2-(3-6t-8t^2)

=5t^2-3+6t+8t^2

=13t2-3+6t

Answer 2

Answer:

$\boxed {\boxed {\sf B. \ 13t^{2} -3+6t}}$

Step-by-step explanation:

We are given this expression and asked to simplify:

$5t^2-(3-6t-8t^2)$

First, distribute the -1. Multiply each term in the parentheses by -1 or switch the sign of every term inside the parentheses.

$5t^2+ (-1*3)+(-1*-6t)+(-1*-8t^2)$

$5t^2+(-3)+(6t)+(8t^2)$

$5t^2-3+6t+8t^2$

Next, combine like terms. We see that two terms have a t², so they are like terms. We can add them together.

$(5t^2+8t^2)-3+6t$

$13t^2-3+6t$

The simplified expression is 13t²-3+6t and Choice B is correct.