(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"?
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?
1 answer