X² − 12x + 36 = 0 Solutions?

2 answers:

8 0

X² - 12x + 36 = 0
We know this is in standard form so we can use the quadratic formula. Indeed like a previous solution posted you can use factors, that is quicker but this will always work so let's see.

Now let's fill the gaps in the formula

x = 12 +- square root of (144 - 4(1)(36) )/ 2

X = 12 +- square root of (144 - 144) / 2

X = 12 / 2

X = 6

Alika [10]3 years ago

5 0

Factors of 36 that add up to -12

-6 and -6

<span>(x − 6)(x − 6)
</span>
Set them both to equal 0 and solve for x

x - 6 = 0

x - 6 = 0

x = 6

x = 6

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