Question

2. Evaluate the following:
(a) 5a2 + ab - 2a + 2ba - 10 when a = -2 and b = 3​

Answer 1

The answer is –16.

Step-by-step explanation:

5a² + ab - 2a + 2ba - 10

5(–2)²+(–2)(3)–2(–2)+2(3)(–2)–10

20–6–4–12–10

20–10–4–12–10

20–10–16–10

20–20–16

–16

Answer 2

Answer:

Answer is -4.

Step-by-step explanation:

Given,

5a²+ab-2a+2ba-10

a=-2 , b=3

=> 5(-2)² + (-2)(3) - 2(-2) + 2(3)(-2) - 10

=> 5(4) + (-6) - (-4) + 2(-6) - 10

=> 20 - 6 + 4 - 12 - 10

=> 14 - 8 - 10

=> 14 - 18

=> -4

I hope it helps you.