If A = 3x2 – 4X + 1, B = 5x2 + 3x -8 and C = 4x2 -7x + 3, then find (A + B) –C.
Answers
Answered by
24
Answer:
4x² + 6x - 10
Step-by-step explanation:
Given : A = 3x² - 4x + 1 ; B = 5x² + 3x - 8 ; C = 4x² - 7x + 3
To find: (A + B) - C
Solution :
A + B = 3x² - 4x + 1 + 5x² + 3x - 8
= 3x²+ 5x² - 4x + 3x - 8 + 1
= 8x² - x - 7
(A + B) - C = 8x² - x - 7 - (4x² - 7x + 3)
= 8x² - x - 7 - 4x² + 7x - 3
= 4x² + 6x - 10
Answered by
6
Answer:4x² + 6x - 10
Step-by-step explanation:
To find: (A + B) - C
Solution :
A + B = 3x² - 4x + 1 + 5x² + 3x - 8
= 3x²+ 5x² - 4x + 3x - 8 + 1
= 8x² - x - 7
(A + B) - C = 8x² - x - 7 - (4x² - 7x + 3)
= 8x² - x - 7 - 4x² + 7x - 3
= 4x² + 6x - 10
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