Answer:
y = 0, y = , y = 7
Step-by-step explanation:
Factor out from each term
( 3 - 22 + 7) = 0 , that is
(3y² - 22y + 7) = 0 ← factor the quadratic
Consider the factors of the product of the coefficient of the y² term and the constant term which sum to give the coefficient of the y- term
product = 3 × 7 = 21 and sum = - 22
The factors are - 21 and - 1
Use these factors to split the y- term
3y² - 21y - y + 7 ( factor the first/second and third/fourth terms )
3y(y - 7) - 1 (y - 7) ← factor out (y - 7) from each term
(y - 7)(3y - 1)
Then
(y - 7)(3y - 1) = 0
Equate each factor to zero and solve for y
= 0 ⇒ y = 0
3y - 1 = 0 ⇒ 3y = 1 ⇒ y =
y - 7 = 0 ⇒ y = 7
Answer:
1/6x -1
Step-by-step explanation:
"Simplify" generally means, "eliminate parentheses and combine like terms." In general, parentheses are eliminated by making use of the distributive property.
__
Answer:
16
Step-by-step explanation:
Answer:
-7x+3
Step-by-step explanation:
The question gives the relationship to be
We will interpolate to solve the question.
First Question: 147 mi
Cross multiplying,