Describe the nature of the roots for this equation 2x^2+5x-7=0

a. two real, rational roots
b. two real, irrational roots
c. two complex roots
d. one real, double root

How to use order of operation in 20 divide by 4 multiply 5 = 1

Write the equations in logarithmic form 9^4=6,561

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.