The term used for breaking a larger number apart into smaller numbers that can be multiplied together to get a specific result is factorization.
For instance,
factorise 3x² + 9x + 6
The common factors of 3, 9 and 6 is 3
= 3(x² + 3x + 2)
x² + x - 20 = 0
x² + 5x - 4x - 20 = 0
x(x + 5) - 4(x + 5) = 0
(x + 5) (x - 4) = 0
x + 5 = 0 ; x - 4 = 0
x = 5 or. x = 4
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