factorisen y^2-2y-15
2x3+9x2+x+k
Find that (3x-2)is a factor of 3x3+x2-20x+13
what will be the answer
Write the conjugate of complex number and express them in the form of x+iy
Solve for x and y 47x+31y=63, 31x+47y=15 class 10th