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algol13
3 years ago
14

Solve using the quadratic formula x^2+x=12

Mathematics
1 answer:
IrinaVladis [17]3 years ago
3 0

Step-by-step explanation:

x²+x-12=0

by factorization

x²-3x+4x-12=0

taking common

x(x-3)+4(x-3)

(x+4)(x-3)

x= -4. x=3

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