If alfa and bita are zeroes of poly x square minus 3x plus 2 then find the value of alfa square plus bita square?
what is wrong with using real symbols?
If a and b are the roots of
x^2-3x+2 = 0
what is a^2+b^2?
We have (x-2)(x-1) = 0
so, the roots are 1,2
1^2+2^2 = 1+4 = 5