The text recommends simplifying an expression (combining like terms) before evaluating. do you think this is necessary? evaluate the expression 4x^2-5(x+2)+3x+10+2x for x=3: a. by substituting and then evaluating b. by fist simplifying and then evaluating. which method would you recommend? why?

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~