Question

Simplify the following expression: (5x2 + 3x + 4) - (2x2 - 6x + 3). If the final answer is written in the form Ax2 + Bx + C, what is the value of B?

Answer 1

first take out of parenthesis, so you have

5x^2+3x+4-2x^2+6x-3 now combine like terms

Answer 2

so 5x,3x,2x, and 6x then you have 4,2, and 3 right?

Answer 3

this algebra man

Answer 4

you can combine 5x^2 -2x^2 = 3x^2
then combine 3x + 6x = ??
and finally 4 - 3 = ??

Answer 5

3x+6x=9x and 4-3=1 so you'd subtract those two yea?
Im sorry im really bad at this

Answer 6

ok so you have as the answer 3x^2+9x+1

Answer 7

so what is the value of B

Answer 8

is it 19?

Answer 9

no, the number that is in the B position is 9 , look at the formula and look at the answer

Answer 10

So B is 9?

Answer 11

correct

Answer 12

Ax^2 + Bx + C and you have
3x^2 + 9x +1

Answer 13

A = 3, B = 9 and C = 1

Answer 14

understand ?

Answer 15

Yeah thank you so much

Answer 16

How do i give you a medal?

Answer 17

just hit where it say "best response"

Answer 18

Thank you

Answer 19

yw :)