Factor:
3x^2 - 27
3x^2-27=0
27+(3x^2-27)=0+27
3x^2=27
(3x^2)/3=27/3
x^2=9
x=3
Since there is 3x^2, one term must contain 3x and the other x. 27 factors into 3*3*3 or 3*9. With this information, you should be able to factor it yourself.
I hope this helps. Thanks for asking.
X/4+x/5=27
To factor the expression 3x^2 - 27, you can start by factoring out the greatest common factor (GCF) of the entire expression, which is 3:
3x^2 - 27 = 3(x^2 - 9)
Now, you can further factor the expression inside the parentheses as a difference of squares:
x^2 - 9 = (x + 3)(x - 3)
Therefore, the factored form of 3x^2 - 27 is:
3x^2 - 27 = 3(x + 3)(x - 3)