Answered

1.)6x²+18x=0
2.)X²-14=5x
3.)4s²+9=12×
4.)6s²+18s=0
5.)11r+15=-2r²

Sagot :

1 a=6; b=18; c=0 
2 x2-5x-14=0
3 4s2-12x+9=0
4 a=6; b=18; c=0
5 2r2+11r2+15=0

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