Simplify
(5x+3)+(8x+1)
(5x)+(8x)= 13x^2
(5x)+(1)=5x
(3)+(8x)=11x
(3)+(1)=4
=13x^2+5x+11x+4
=13x^2+16x+4
Is this right or wrong?
(2t^2-3t)-(7t^2-5t)
= (2t^2)-(7t^2)=-5t
= (2t^2)-(-5t)= 7t
=(-3t)-(7t^2)=-10t
=(-3t)-(-5t)=2t
=-5t+7t-10t+2t
I am confused. Why are all my answers "t" and none of them are "t^2"?
The correct answer is:
(5x+3) + (8x+1) = 5x + 8x + 3 + 1 = 13x + 4
We don't combine like terms with different variables. Therefore, we keep 13x separate from 5x and 8x. Additionally, we combine the constants 3 and 1 to get 4.
So, the simplified expression is 13x + 4.