Question

plzz do ques 6 plzzzz

Answer 1

HELLO DEAR FRIEND

GIVEN,

a² + b² = 34

ab = 12

then,

1.> 3(a + b)² + 5(a - b)²

3(a² + b² + 2ab) + 5(a² + b² -2ab)

3(34 + 2(12) ) + 5(34 - 2(12) )

3(34 + 24) + 5(34 - 24)

3(58) + 5(10)

174 + 50

= 224

2> 7(a - b)² - 2(a + b)²

7(a² + b² - 2ab) - 2(a² + b² + 2ab)

7(34 - 2(12) ) - 2(34 + 2(12) )

7(34 - 24) - 2(34 + 24)

7(10) - 2(58)

70 - 116

= - 186

HOPE IT HELPS