Question

m2 +n2 = 6 and mn = 3, Find the value of (m+n)2 - 4(m-n)2.

Answer 1

Answer:

- 108

Step-by-step explanation:

(m+n)² - 4(m-n)² = m² + n² + 2mn - 4(m² + n² - 2mn)

                          = m² + n² + 2mn - 4m² - 4n² + 8mn

                          = -3m² - 3n² +10mn

                          = -3(m²+n²+ 10mn)

                          = - 3 (6 + 10*3) = -3 (6 + 30)  = - 108.

Answer 2

Answer:

2 is the answer Ok plz mark me as a brainliest