Expand and combine like terms.
(5 - 2x^4) (5 + 2x^4) =

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50