Question

What is 3g^2 + 2g^2 - 4g simplified?

Answer 1

Answer: 9g

Explanation:

3g^2 + 2g^2 - 4g

you simplify the exponents first, because of P.E.M.D.A.S.:

9g + 4g - 4g combine like terms

Answer: 9g

Answer 2

consider

`3g^2+2g^2-4g`

note that the letter g is common to all the numbers in the equation, so we take the lowest power of g and make a common factor, that is:

`3g^2+2g^2-4g=g(3g+2g-4)^{}\text{ = g(5g - 4)}`

so the correct answer is

g(5g - 4)