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FinnZ [79.3K]
4 years ago
14

Pleaseeee help!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Ket [755]4 years ago
6 0

Answer:

A:- This polynomial has a degree of 2, so the equation x^2+x-12=0 has exactly 2 roots.

B:-The quadratic equation x^2+x-12=0 has two real solutions, x= 3 or x= -4

Step-by-step explanation:

1) A quadratic equation always has 2 real roots.

2) Solving the equation,

factorisation method,

x^2+x-12=0

x^2-3x+4x-12=0

x (x-3) +4 (x-3)=0

(x-3)(x+4)=0

thus x=3 or x=-4

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