If p(x)=x3-3x2,then find the value of p(1)

p=-3x

Step-by-step explanation:

Divide each term by x

Simplify the left side

Cancel the common factor of x

Cancel the common factor

Divide p by 1

Simplify the right side

Simplify each term

Cancel the common factor of x^3 and x

Factor x out of x^3

Cancel the common factors

Raise x to the power of 1

Factor x out of x^1

Cancel the common factor

Rewrite the expression

Divide x^2 by 1

Cancel the common factor of x^2 and x

Factor x out of −3x^2

Cancel the common factors

Raise x to the power of 1

Factor x out of x^1

Cancel the common factor

Rewrite the expression

Divide  −3x  by 1

p=x^2−3x

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!