If A = x2
+5x+1 and B = x2
-2x2
+7x+9 find 2A-B.
Answers
Answered by
0
Answer:
then it is divided by and multiple of 9
Answered by
0
Answer:
2x^2 + 3x + 11
Step-by-step explanation:
Given,
A = x^2 + 5x + 1
B = x^2 - 2x^2 + 7x + 9
To find : 2A - B = ?
2A
= 2 ( x^2 + 5x + 1 )
= 2x^2 + 10x + 2
- B
= - ( x^2 - 2x^2 + 7x + 9 )
= - x^2 + 2x^2 - 7x + 9
= x^2 - 7x + 9
2A - B
= 2x^2 + 10x + 2 + x^2 - 7x + 9
= 2x^2 + x^2 + 10x - 7x + 2 + 9
= 2x^2 + 3x + 11
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