3 years ago

(4x²+9x-7) - (-7x²+5x-1)

Mathematics

2 answers:

Studentka2010 [4]3 years ago

8 0

Answer:

11 x^2 + 4x -6

Step-by-step explanation:

combine like terms but be careful with the minus sign in front of the second set of parentheses.

4x^2 + 9x -7 + 7x^2 -5x +1

katen-ka-za [31]3 years ago

8 0

Answer: $-3x^2+4x-6\\$

Step-by-step explanation:

4x^2 +9x-7 does not need distributive propery

-(7x^2+5x-1) does with that negitive in front of parentheses

It then becomes -7x^2-5x+1

Add it all together

$-3x^2+4x-6$

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