F.2 Maths 二十點架 要解釋

1.

Find the values of A and B in the following identities.

3-4y=Ay+B

Solution

L.H.S=3-4y
=( )y+( )

( )y+( )=Ay+B

A=( ) and B=( )

2.

2x二次+5X=Ax二次+Bx

A=( ) and B=( )

3.

If 4x-5=(P-1)X+Q,where P and Q are constants,findthe values of P and Q.