subtract. 7x—2a³ from a³+9x
Answers
Answered by
1
Answer:
Add the following:
(i) 3x and 7x
(ii) −5xy and 9xy
ANSWER:
We have
(i) 3x + 7x = (3 + 7)x = 10x
(ii) -5xy + 9xy = ( -5 + 9)xy = 4xy
Answered by
8
Method 1
Group like terms first!
a³ + 9x
+ 2a³ - 7x
___________
3a³ + 2x
_____________
Method 2
a³ + 9x - ( - 2a³ + 7x)
a³ + 9x + 2a³ - 7x
= 3a³ + 2x
This is the answer if I am not wrong !
I am not sure but!
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