Question

4x^2+2x-5-3x and 6x^2-x+3-2x^2-8

Are these two expressions equal? Show how you know

Answer 1

yes they are equal

Explanation:

for the equation
`4x^(2) +2x-5-3x` you're going to collect like terms

2x-3x=5x

so your final equation is
`4x^(2) -x-5`

for the equation
`6x^(2) -x+3-2x^(2) -8` you're going to collect like terms

`6x^(2) -2x^(2) =4x^(2)`

then you're going to calculate the difference

3x-8=-5

so your final equation is
`4x^(2) -x-5`

Answer 2

Explanation:

Simply Equation 1

R. H. S

6x^2 -x +3-2x^2-8

==> 6x^2-2x^2 -x +3-8

==> 4x^2-x-5 .....(1)

Simply equation 2

L. H. S

4x^2+2x-5-3x

==> 4x^2 +2x-3x-5

==> 4x^2-x-5 ....(2)

Since here, RHS = LHS

both eqn (1) = eqn(2)

hence they are equal.