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natulia [17]
2 years ago
10

Hello people ~Factorise: x^2 + 7x + 12​

Mathematics
2 answers:
madam [21]2 years ago
4 0

Solving steps:

\sf \rightarrow x^2\:+\:7x\:+\:12

breakdown the following

\sf \rightarrow x^2\:+\:3x + 4x\:+\:12

break the expressions into groups

\sf \rightarrow \left(x^2+3x\right)+\left(4x+12\right)

factor the following

\rightarrow \sf x\left(x+3\right)+4\left(x+3\right)

factor the common term: (x+3)

\rightarrow \sf \left(x+3\right)\left(x+4\right)

Ronch [10]2 years ago
3 0

Step-by-step explanation:

x^2 + (4+3)X + 12

x^2 + 4x + 3X + 12

X (X + 4) + 3 ( X + 4)

( X + 3) (X +4)

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