4 years ago

Simplify 3(3x-1)^2=21

Mathematics

2 answers:

GuDViN [60]4 years ago

5 0

27x^2-3=21
27x^2=24

the answer is 27x^s=24
that is my work up there

scoray [572]4 years ago

4 0

3(3x-1)^2=21

(3x-1)^2 = 7

3x-1 = square root of 7

3x = square root of 7 - 1

x = (square root of 7 - 1)/3

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