Question

Quadratic formula

X2-3x+2=0

Answer 1

3x=4

Explanation:

Answer 2

`x^2-3x+2=0\\\\a=1;\ b=-3;\ c=2\\\\\Delta=b^2-4ac\\\\\Delta=(-3)^2-4\cdot1\cdot2=9-8=1\\\\x_1=(-b-\sqrt\Delta)/(2a);\ x_2=(-b+\sqrt\Delta)/(2a)\\\\\sqrt\Delta=\sqrt1=1\\\\x_1=(3-1)/(2\cdot1)=(2)/(2)=1;\ x_2=(3+1)/(2\cdot1)=(4)/(2)=2\\\\Answer:x=1\ or\ x=2.`



`x^2-3x+2=(x-1)(x-2)`