Question

9. The expression 5x - 7x2 + 3x + 2x is a (b​

Answer 1

Step-by-step explanation:

All grade answer math problems are solved here from different topics. A large number of objective answer math problems are solved here to help the students quickly to test their knowledge and skills on different topics.

1. Simplify: (4x2 - 2x) - (-5x2 - 8x).

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

Answer 2

Answer:

5x-7×2+3x+2x

5x-14+5x

10x-14=0

10x=14

X=14/10

X=7/5

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