a)
5-(3x-2)(4x+3)=1-3(3-2x)²
=5-(12x²+9x-8x-6)=1-3(9-12x+4x²)
5-12x²-x+6=1-27+36x-12x²
-x+11=-26+36x
-37x=-37
X=1
b)
5x²-2x=0
X(5x-2)=0
X1=0 , 5x-2=0
5x=2
X2=2/5
a)
5-(3x-2)(4x+3)=1-3(3-2x)²
=5-(12x²+9x-8x-6)=1-3(9-12x+4x²)
5-12x²-x+6=1-27+36x-12x²
-x+11=-26+36x
-37x=-37
X=1
b)
5x²-2x=0
X(5x-2)=0
X1=0 , 5x-2=0
5x=2
X2=2/5