Question

Find the difference: (9x² − 2x + 1) − (5x² − 3)

Answer 1

\[(9x² − 2x + 1) − (5x² − 3)\]\[=9x² − 2x + 1-5x^2+3\]\[=4x^2-2x+4\]

Answer 2

Understood??

Answer 3

ok so first solve for : \(\large{-(5x^2-3)}\)

Answer 4

as we know that:
\[\large{-(a-b)=-(a)-(-b)=-a+b}\]

Answer 5

hence \[\large{-(5x^2-3)}\] would be equal to?

Answer 6

yes understood thanks

Answer 7

Change the signs of the last two terms and add the resulting five terms together.\[4 x^2-2 x+4 \]

Answer 8

So nice explaining @mathslover wow!!!

Answer 9

thanks @TheViper