Question

ayudenme es para mañana solo esos me faltan de 24

Answer 1

1. X2 + 5x -18 = 6
X2+5x-18-6=0
X2+5x-24=0
(X+8)(x-3)=0
x+8=0
x=-8
x-3=0
x=3

2. X2-2x-30=18
X2-2x-30-18=0
X2-2x-48=0
(X-8)(x+6)=0
x-8=0
x=8
x+6=0
x=-6

3. X2-11=38
X2=38+11
X2=49
X=+/-7
X=7
X=-7

4. X2-9x+11=-9
X2-9x+11+9=0
X2-9x+20=0
(x-5)(x-4)=0
x-5=0
x=5
x-4=0
x=4


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