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? Numerical Answers Expected! i know the answer but am i only suppose to put in the answer for the value of the letter or should i put in the whole answer

Answer 1

just subtract them ....

(5x^2 + 3x + 4)
− (2x^2 − 6x + 3)


5x^2 + 3x + 4
-2x^2 + 6x - 3
----------------
???

Answer 2

if its just expecting the value of B, id just put in B and not Bx

Answer 3

No i know the answer which the value of b is -3 but should i put in the whole answer like this 3x^2+-3x+7 the value of b is -3

Answer 4

your value of B is off; you need to reverse ALL the signs in the (...) when subtracting

Answer 5

can you take a screenshot? it might help to better formualte what they are wanting as a response

Answer 6

Im confused because it says put in the numerical answer which is expected so should i just put the value of b or is it telling me to put more than that

Answer 7

Okay yeah sure give me one second and thanks for helping me

Answer 8

Okay so i have saved it but im afraid to give it out because it has saved the page with my name and the teachers name on it

Answer 9

if you hit the "print screen" button; you can open it in paint and edit it

Answer 10

Actuallt thank you very much for your time and effort but my teacher finally answered my text thank you again so much she told me i only have to put in the value of the letter

Answer 11

then lets review what that value is; since what you presented to me was in error :)

Answer 12

No you had it correct 5x^2 + 3x + 4
-2x^2 + 6x - 3
----------------
???

Answer 13

when we work out the math

5x^2 + 3x + 4
-2x^2 + 6x - 3
----------------
3x^2 + 9x - 1

Answer 14

Oh it is...

Answer 15

:) good luck

Answer 16

(5x2 + 3x + 4) − (2x2 − 6x + 3)

Answer 17

One second please dont leave

Answer 18

What did i do wrong that made me get 3x^2+-3x+7