Brainliest & points asap ! ( i need someone to check the answers for me or hep me with the right one ) solve by using the quadratic formula. 8. x^2 + 7x -3= 0x= 7.40 and x=0.40 9. 5x^2 -8x -4=0 x=1.49 and x=0.11 10. 3x^2 + x -1= 0 x= -2 and x= 1.67

To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.