Question

If 5a – b = 5 and ab = 6; find the value of 25 a
² + b²​

Answer 1

Answer:

85

Step-by-step explanation:

${(5a - b)}^{2} = {(5a)}^{2} + {b}^{2} - 2 \times 5a \times b$

${(5)}^{2} = 25 {a}^{2} + {b}^{2} - 2 \times 5 \times 6$

$25 {a}^{2} + {b}^{2} = 25 + 60$

$25 {a}^{2} + {b}^{2} = 85$

HOPE it will HELP you✌️

PLEASE mark the answer as BRAINLIEST. ✍️