Question

Find the value b ^ 2 - 4ac , if a = 12 , b = - 25 , c = - 15​

Answer 1

Answer:

${b}^{2} - 4ac \\ \\ = {( - 25)}^{2} - 4 \times 12 \times ( - 15) \\ \\ = 625 + 720 \\ \\ \large{ = 1345}$