If ( 4x - 2 ) ( x + 9 ) - 3x = ax2 + bx + c, what is the value of b. The 2 is and exponent please help me 

b=31 in

Step-by-step explanation:

Hi there!

Our goal is to expand this equation and put it in the form . Firstly, multiply the first two binomials (in the parentheses):

Now, we can combine like terms (terms with like variables):

Now, in this equation, we can easily identify that 31 is the value of b in .

I hope this helps!

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17

answer is because 4×10=40

and 98×4= is 392

40,392