1
Create separate equations
(x+421)(x-20)=0
(x+421)=0\\ (x-20)=0
2
Subtract
421
from both sides
x+421=0
x+421\textcolor{#C58AF9}{-421}=0\textcolor{#C58AF9}{-421}
3
Simplify
Subtract the numbers
x=-421
Answer:
x=20
Step-by-step explanation:
How to solve your problem
Solve
x+421\textcolor{#B14BA5}{-421}=0\textcolor{#B14BA5}{-421}
4
Add
20
to both sides
x-20=0
x-20+\textcolor{#B14BA5}{20}=0+\textcolor{#B14BA5}{20}
5
Add the numbers
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Answers & Comments
1
Create separate equations
(x+421)(x-20)=0
(x+421)=0\\ (x-20)=0
2
Subtract
421
from both sides
x+421=0
x+421\textcolor{#C58AF9}{-421}=0\textcolor{#C58AF9}{-421}
3
Simplify
Subtract the numbers
Subtract the numbers
x=-421
Verified answer
Answer:
x=20
Step-by-step explanation:
How to solve your problem
(x+421)(x-20)=0
Solve
1
Create separate equations
(x+421)(x-20)=0
(x+421)=0\\ (x-20)=0
2
Subtract
421
from both sides
x+421=0
x+421\textcolor{#B14BA5}{-421}=0\textcolor{#B14BA5}{-421}
3
Simplify
Subtract the numbers
Subtract the numbers
x=-421
4
Add
20
to both sides
x-20=0
x-20+\textcolor{#B14BA5}{20}=0+\textcolor{#B14BA5}{20}
5
Simplify
Add the numbers
Add the numbers
x=20