Answer:
9y(2x - 1)(x - 2y)(x + 2y)
Step-by-step explanation:
Given
18x³y - 9x²y - 72xy³ + 36y³ ← factor out 9y from each term
= 9y(2x³ - x² - 8xy² + 4y²)
Factor the first/second and third/fourth term in the parenthesis
= 9y( x²(2x - 1) - 4y²(2x - 1)) ← factor out (2x - 1) from each term
= 9y(2x - 1)(x² - 4y²)
x² - 4y² is a difference of squares and factors in general as
a² - b² = (a - b)(a + b), thus
x² - 4y²
= x² - (2y)² = (x - 2y)(x + 2y), hence
18x³y - 9x²y + 72xy³ + 36y³
= 9y(2x - 1)(x - 2y)(x + 2y) ← in factored form
Keisha drank the average amount of water 1 of the days.
if he drinks 1 quart, his average is 21/13.
No derivation at x=3 .
only at x=3
Answer:
72+ 18x
Step-by-step explanation:
9x+72+5x+4x
72+ 18x
Answer:
if you copy this whole thing and put it into google you can find all the answers
Step-by-step explanation:
it's called solutions to algebra or whatever math ur in and you find the chapter and lesson you on and click the exercises under that lesson you'll get the answers to every problem I know this cuz I use big ideas math to
