Given that the quadratic equation x^2 + 7x + 13 = 0 has roots a and b, find the value of a+b and ab.
Remember that for a general quadratic equation Ax^2 + Bx + C = 0, the sum of the roots = -B/A and the product of the roots = C/A.In our question, A = 1, B = 7, C = 13.So a + b = -7/1 = -7 and ab = 13/1 = 13
NT
Answered by Nathan T. • Further Mathematics tutor
3241 Views
See similar Further Mathematics A Level tutorsRelated Further Mathematics A Level answers
All answers ▸z = -2 + (2root3)i. Find the modulus and argument of z.
Find the eigenvalues and corresponding eigenvectors of the following matrix: A = [[6, -3], [4, -1]]. Hence represent the matrix in diagonal form.
Convert the general complex number z=x+iy to modulus-argument form.
Can you show me how to solve first order differential equations using the integrating factor method?