Question

Explain, in your own words, the step-by-step process to simplifying the expression below. Include the simplified answer in your explanation.

(10x^2 - 5) - (3x^2 - 2x + 7)

Answer 1

10x^2-5-3x^2+2x-7=7x^2+2x-12

Answer 2

Please explain it step by step in words?

Answer 3

Just open the bracket

Answer 4

huh? im sorry my brain is fried

Answer 5

We have
\[(10x^2 - 5) - (3x^2 - 2x + 7)\]
Let's open the brackets first being mindful that the second term has a ' - 'sign before it
\[10x^2-5-3x^2+2x-7\]
Let's bring the like terms together
\[10x^2-3x^2+2x-5-7\]
Now we'll combine the like terms
\[x^2(10-3)+2x-5-7\]
Simplifying now, we get finlly
\[7x^2+2x-12\]