Question

6. If a2 + b2 = 34 and ab = 12; find :
(i) 3(a + b)2 + 5(a - b)2
(ii) 7(a - b)2 - 2(a + b)2​

Answer 1

Step-by-step explanation:

answer of part 1 is here plz look at the same and follow

Answer 2

Answer:

i)

$3( {a}^{2} + 2ab + {b}^{2} ) + 5( {a}^{2} - 2ab + {b}^{2} )$

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

$3(58) + 5(10)$

$224$

ii)

$7( {a}^{2} - 2ab + {b}^{2} ) - 2( {a}^{2} + 2ab + {b}^{2} )$

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

$70 - 116$

$- 4$

Feel free to correct me if I'm wrong.