Question

plz anyone give the answer in your copy​

Answer 1

Answer:

2a² -- 8a + 15

Step-by-step explanation:

Perimeter of the triangle = 5a²-- 5a + 9

Let the third side be x

According to the question,

x + ( a² + 2a-- 3) + (2a² + a --3) = 5a²-- 5a + 9

x +  a² + 2a -- 3 + 2a² + a --3 = 5a²-- 5a + 9

x + (a² + 2a²) + (2a + a) + (--3 -- 3) = 5a²-- 5a + 9

x + 3a² + 3a -- 6 = 5a²-- 5a + 9

x = 5a²-- 5a + 9 -- 3a² -- 3a + 6

x = 5a² -- 3a² -- 5a -- 3a + 9 + 6

x = 2a² -- 8a + 15

Answer 2

Answer:

The third side = 2a^2 - 8a + 15

Hope it helps!

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