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3 votes
Solve the quadratic by quadratic formula

7x-10=x squared

User Olorin
by
7.9k points

2 Answers

3 votes
0= x^2-7x+10

Factor
(x-5)(x-2)=0

Check
-5-2=-7, -5*-2=10

Use ZPP
x-5=0
x=5

x-2=0
x=2

Final answer: x=2, x=5
User Rupweb
by
8.5k points
3 votes

Answer:


x = 2, x = 5

Explanation:

Hello!

Standard form of a Quadratic:
ax^2 + bx +c = 0

We can solve for x by factoring.

First, convert it into standard form:


  • 7x - 10 = x^2

  • 0 = x^2 - 7x + 10

Now, find two numbers that multiply to 10 and add up to -7. The two numbers are -5 and -2. Expand -7x into -5x and -2x.

Factor by Grouping


  • x^2 - 7x + 10 = 0

  • x^2 - 5x - 2x + 10 = 0

  • x(x - 5) - 2(x - 5) = 0

  • (x - 2)(x - 5) = 0

  • x = 2, x = 5

The two solutions for x are 2 and 5.

User Chntgomez
by
7.4k points