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
Answer:
10.756 esa seria la respuesta
Step-by-step explanation:
Answer:
129 1/6 feet
Step-by-step explanation:
Formula for area is L*W
1. convert the mixed numbers to improper fractions
12 1/2 feet = 25/2
10 1/3 feet = 31/3
2. multiply numerator by numerator (25*31 = 775
3. multiply denominator by denominator (2*3=6
4. convert improper fraction 775/6 into a mixed number by dividing 775 by 6.
5. 775/6 = 129 r. 1 or 129 and 1/6