Answer:
Expand:
x^2+7x-2x-14
Answer:
x^2+5x-14
Step-by-step explanation:
Answer: See below
Step-by-step explanation:
A) 


Multiply both sides by -1 and reverse the inequality:


B) 




Answer:
Step-by-step explanation:
2x²-13x+21+6x²+29x-5
=8x²+16x+16
(3x+4)+(5x2-1)+(2x+6)
remove unnecessary parenthesis
3x+4+(5x2-1)+(2x+6)
3x+4+(10-1)+2x+6
subtract the numbers
3x+4+9+2x+6
collect the like terms
5x+4+4+9+6
5x+19