Question

Please answer question 2, 3 and 9

Answer 1

$i \: hope \: this \: answer \: will \: u$

Answer 2

2

• 2x(2x+3)+(x-3)=-(3x+9) ( all Multiply (x-3)(2x-3) )

• 4x^2+10x+6=0

• (4x+6)(x+1)=0

3

• x=1/(2-(1/(2-1/(2-x))))
• x=1/(2-(1/((3-2x)/(2-x)))))
• x=1/((2(3-2x)-2+x)/(3-2x)))
• x=(3-2x)/(4-3x)
• 4x-3x^2=3-2x
• (3x-3)(x-1)=0

9

• (-b+√b^2-4ac)/2a=x or (-b-√b^2-4ac)/2a=x
• (-3+√(9+4a^2+a-2))/2=x or (-3-√(9+4a^2+a-2))/2=x
• (-3+√(2a+1)^2)/2=x or (-3-√(2a+1)^2)/2=x
• (2a-2)/2=x or (-2a-4)/2=x
• x=(a-1) or x=(-a-2)
• (x-a+1)(x+a+2)=0