Question

What method would you choose to solve the

Answer 1

Answer:

This is a quadratic equation . We order to equate to zero

2x² – 7 = 9  

2x² - 7-9 = 0

2x² - 16 = 0

This equation is a binomial

2* (x² - 8) = 0

We choose the simplest method . The equation with practice it can be calculated in the memory

The product is equal to 0 if one of the factors is zero

2≠0  ∨     x² - 8 = 0

              x² = √8

              x = √8     ∨  x= - √8

Answer : x = √8 ∨ x = -√8

Step-by-step explanation:

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