Question

please tell the answer Fast​

Answer 1

Answer:

50

Step-by-step explanation:

3(9+2×4) - 2(9-2×4)

3×17 - 2×1

=50

Answer 2

Answer:

Step-by-step explanation:

$a^{2} + b^{2} = 9 \\ab = 4$

In the identity $(a + b )^{2} = a^{2} +b^{2} +2ab$

substitute the values

$(a + b )^{2} = a^{2} +b^{2} +2ab$

$(a + b )^{2} = 9 +2(4)$

$(a + b )^{2} = 9 + 8$

$(a + b )^{2} = 17$

Now to find   $3(a + b )^{2} - 2(a - b )^{2}$

$3(a + b )^{2} - 2(a - b )^{2}$  can be written as $3(a + b )^{2} + 2(a + b )^{2}$

so now we just need to substitute the value of $(a + b )^{2}$

$(a + b )^{2} = 17$

$3(a + b )^{2} + 2(a + b )^{2}$ = $3(17) + 2(17)$

                                = 51 + 34

                                = 85

hence your answer = 85

sorry for delay

hope it helps you