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3 years ago

X² + 23x + 132 factorise

Mathematics

1 answer:

Serga [27]3 years ago

8 0

Answer:

Step-by-step explanation:

X^2 +23x+132=0 you find two numbers that will multiply to give 132 and add to give 23

In this case the two numbers will be +12 and also +11

12*11=132 and +12+11 =23

X^2 + 12x +11x +132=0

Factor by grouping

X(x+12)+11(x+12) =0

(X+11) (x+12)=0

X +11=0

So x=-11

X+12=0

So x-12

There your solution will be

X=-11 or -12

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Read 2 more answers

X² + 23x + 132 factorise ​

X² + 23x + 132 factorise