Question

please answer this question​

Answer 1

thise is answer is a 33 really

Answer 2

Step-by-step explanation:

We know that opposite sides of a parallelogram are equal

Then

$a - 2b = 18 ..... ...............(1) \\ \\ {b}^{2} - 10 = 15.......................(2)$

$from \: \: eq. \: \: 2 \\ \\ {b}^{2} - 10 = 15 \\ \\ {b}^{2} = 15 + 10 \\ \\ {b}^{2} = 25 \\ \\ b = \sqrt{25 } \\ \\ b = + 5 \: \: and \: \: - 5$

$now \: \: </strong><strong> \: \: \: eq. \: \: 1 \\ \\ a - 2b = 18 \\ at \: \: b = 5 \\ \\ a - 2(5) = 18 \\ \\ a - 10 = 18 \\ a = 18 + 10 \\ = 28 \\ \\ then \: \: a + b \: = 28 + 5 = 33$

$at \: \: b = - 5 \\ \\ a - 2b = 18 \\ a -2 ( - 5) = 18 \\ a + 10 = 18 \\ a = 18 - 10 \\ a = 8 \\ then \: \: a + b = 8 - 5 = 3$

Hence. a+b. will. 33 or 3

Ans is 33