Question

can someone show me the steps to find the difference:
(-5x^2 + 2x – 5) – (7x^2 – 2x – 3)

Answer 1

im always glad when people ask for steps so i shall help...the key thing to note is to DISTRIBUTE the minus sign into the quantity (7x^2 - 2x - 3)

therefore...

-5x^2 + 2x - 5 - (7x^2) - (-2x) - (-3)

that will give you

-5x^2 + 2x - 5 - 7x^2 + 2x + 3

Answer 2

you can solve it from there right?

Answer 3

I am totally lost,

Answer 4

hmm okay..which part?

Answer 5

when you make -(- which makes it a positive then i a lost

Answer 6

hmm i thought so...what if i rewrite it as

(-5x^2 + 2x – 5) + [–1(7x^2 – 2x – 3)]

this means that you multiply the quantity 7x^2 - 2x - 3 by -1 then add