How to solve 5y2-20y-5z-2yz
Answers
Answer:
Step by Step Solution:
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Step by step solution :
STEP
1
:
Equation at the end of step 1
5y2 - 20y = 0
STEP
2
:
STEP
3
:
Pulling out like terms
3.1 Pull out like factors :
5y2 - 20y = 5y • (y - 4)
Equation at the end of step
3
:
5y • (y - 4) = 0
STEP
4
:
Theory - Roots of a product
4.1 A product of several terms equals zero.
When a product of two or more terms equals zero, then at least one of the terms must be zero.
We shall now solve each term = 0 separately
In other words, we are going to solve as many equations as there are terms in the product
Any solution of term = 0 solves product = 0 as well.
Solving a Single Variable Equation:
4.2 Solve : 5y = 0
Divide both sides of the equation by 5:
y = 0
Solving a Single Variable Equation:
4.3 Solve : y-4 = 0
Add 4 to both sides of the equation :
y = 4
Two solutions were found :
y = 4
y = 0
Step-by-step explanation: