not sure 100% but my dad told me:
e.g. 2(3x + 4)
2 x 3x = 6x
2 x 4 = 8
so its
6x + 8
another one is
x(7x + x^2)
x times 7x = 7x^2
x times x^2 = x^3
so its
7x^2 + x^3
PS. the ^2 and ^3 stands for sqaured and cubed (:
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(2y)(2x - 3z)
Ah, let's take a moment to appreciate the beauty of algebra. To factorise 6ab - 9ac, we can first factor out the greatest common factor, which is 3a. This leaves us with 3a(2b - 3c), where 2b - 3c is the factored expression. Just like painting a happy little tree, we've simplified our expression with a few gentle brushstrokes.
m(g-a)
In the same way that you would factorise any other expressions that do not contain an equality sign depending on the expressions of which none have been given.
5(3-2x)