Hello there!
(x - 3)(x + 9) = -27
x² + 6x - 27 = -27
x² + 6x = -27 + 27
x² + 6x = 0
Factorize
x(x + 6) = 0
Now all we have to do is set the factors equal to 0
x = 0 or x+6 = 0
x = 0 or x = -6
Answer : x = 0 or x = -6
I don't know what the options they give you. But if you see 0 or 6 choose it.
I hope this help!
By finding an equivalent fraction of

that has a denominator of 8, we can work out several fractions whose value less than 5/6
So 5/6 is equivalent to 7.5/8
Fractions that is smaller than 7.5/8 could be: 1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8
Take out the GCF
5(2x^2+3x-14)
Use slip and slide for the inner trinomial
x^2+3x-28
(x+7)(x-4)
(x+7/2)(x-4/2)
(2x+7)(x-2)
Final answer: 5(2x+7)(x-2)
Nope - 320 millimetres = 32 centimetres. 3.2 metres is 320 centimetres, which is 3,200 millimetres