Question

Which method can't you use to solve this problem? x² - 36 = 0

Factoring | square roots | quadratic formula

explain why:
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Answer 1

We can solve this problem by square roots

• x² - 36 = 0

Let us transpose 36 to the other with a change in its sign.

• or, x² = 36

Now, x² = 36, i.e., square of x is 36. So, we need to find out the value of x by square rooting 36.

• or, x = √36

6 × 6 = 36, we know that.

• or, x = √6 × 6

So,

• or, x = √6²
• or, x = 6

Answer:

square roots

Hope you could understand.

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