senseimichael
New member
- Joined
- Mar 11, 2020
- Messages
- 44
Given that [math](a-b)=20.25[/math] and [math]ab=3[/math] , find the value of [math](1/4)(a+b)^2[/math]
I tried expanding out [math](a+b)^2=a^2+2ab+b^2[/math] but could not find any way to deal with [math]a^2+b^2[/math] after this! Have I encountered yet again another teacher who set an unsolveable question?
I tried expanding out [math](a+b)^2=a^2+2ab+b^2[/math] but could not find any way to deal with [math]a^2+b^2[/math] after this! Have I encountered yet again another teacher who set an unsolveable question?