Question

ajutorrrrrrrrrrr !!!!.. trebuie 20 de caractere ):)))))

Answer 1

delta = 4^2 - 4×(-12) = 16 + 48 = 64 =>radical din delta = 8
x1=(-4-8)/2=-6
x2=(-4+8)/2=2

Answer 2

notam
$f(x) = {x}^{2} + 4x - 12$
️=b×b-4ac=4×4-4×1×(-12)=16+48=64
$x1.2 = \frac{ - b + sau - \sqrt{delta} }{2a}$
X1=(-4+8)÷2=4÷2=2
X2=(-4-8)÷2=-12÷2=-6