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Marat540 [252]
3 years ago
10

Which three steps are correct when solving this quadratic equation by completing the square? X^2-10x=39

Mathematics
1 answer:
sergey [27]3 years ago
4 0

Step-by-step explanation:

Any answer that involes,

Step 1: Complete the Square

{x}^{2}  - 10x = 39

( \frac{  - 10}{2} ) {}^{2}  = 25

{x}^{2}  - 10x + 25 = 64

Step 2: Turn the left side into a binomial

(x - 5) {}^{2}  = 64

Step 3: Solve for x.

x - 5 = +  -  8

x - 5 = 8

x = 13

OR

x - 5 =  - 8

x =  - 3

X=-3 or X=13

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