Answer:
Step-by-step explanation:
(a³ - b³) = (a - b) (a² + ab + b²)
27x³ - 64 = 3³x³ - 4³
= (3x)³ - 4³ {a = 3x & b= 4)
Substitute in the above formula.
= (3x -4)([3x]² + 3x*4 + 4²)
= (3x - 4)(9x² + 12x + 16)
The expression 27x^3-64 factors to (3x-4) (9x^2+12x+16).
Answer:
c = 169
Step-by-step explanation:
Given
m² - 26m
To complete the square
add ( half the coefficient of the m- term)² to m² - 26m
m² + 2(- 13)m + (- 13)²
= m² - 26m + 169 ( with c = 169 )
= (m - 13)² ← perfect square
Answer:
The entry in is 6.3.
Step-by-step explanation:
The table shows the prices of three items in a deli. The deli offers a 10% discount on weekends.
In a matrix represents the nth element of mth row.
It is given that matrix A shows the discounted weekend rates. So the entry in represents the discounted prize of pizza with extra cheese.
The original price of pizza with extra cheese is $7. After discount of 10%, the price of pizza with extra cheese is
The discounted prize of pizza with extra cheese is $6.3.
Therefore the entry in is 6.3.
342,507 that is your answer in standard form