To silve: x(x−3)=x2+5x+7

Kathleen Rausch

Kathleen Rausch

Answered

2021-12-27

To silve: x(x3)=x2+5x+7

Answer & Explanation

hysgubwyri3

hysgubwyri3

Expert

2021-12-28Added 43 answers

Step 1
Distributive property is a(b+c)=ab+ac
Approach:
First, we have to take all the variables to our left side.
Then we have to take all the constants to our right side.
Remove any grouping symbols and solve the equation.
Step 2
To solve x(x3)=x2+5x+7
By distributive property,
x(x3)=x×x3×x
x(x3)=x23x
x23x=x2+5x+7
Add x25x on both sides,
x23xx25x=x2+5x+7x25x
8x=7
Divide by -8 on both sides,
8x8=78
x=78
psor32

psor32

Expert

2021-12-29Added 33 answers

Step 1
Given: x(x3)=x2+5x+7
x23x=x2+5x+7
Step 2
Subtract x2 from both sides
x23xx2=x2+5x+7x2
3x=5x+7
Step 3
Subtract 5x from both sides
3x5x=5x+75x
8x=7
Step 4
Divide both sides by -8
8x8=78
x=78
The answer: x=78
karton

karton

Expert

2022-01-10Added 439 answers

Step 1
x(x3)=x2+5x+7
Expand x(x-3) :
x23x
x23x=x2+5x+7
Subtract x2+5x from both sides
x23x(x2+5x)=x2+5x+7(x2+5x)
Simplify-8x=7
Divide both sides by -8
8x8=78
Answer: x=78 (Decimal: x=-0.875)

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get your answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?