10. Find the sum of (-2a -3b) and (2b + 3a)
Answers
Answered by
4
Answer:
Sum of 3a2 – 2a + 5 and a2 – 5a – 7
= 3a2 – 2a + 5 + a2 – 5a – 7
= 3a2 + a2 – 2a – 5a + 5 – 7
= 4a2 – 7a – 2
And sum of 5a2 – 9a + 3 and 2a – a2 - 1
= 5a2 – 9a + 3 + 2a – a2 – 1
= 5a2 – a2 – 9a + 2a + 3 – 1
= 4a2 – 7a + 2
Now, (4a2 – 7a + 2) – (4a2 – 7a – 2)
= 4a2 – 7a + 2 – 4a2 + 7a + 2
= 4a2 – 4a2 – 7a + 7a + 2 + 2
= 0 + 0 + 4 = 4
Similar questions
Math,
1 month ago
English,
1 month ago
Science,
3 months ago
Science,
3 months ago
Political Science,
9 months ago
Social Sciences,
9 months ago
Physics,
9 months ago