Please help me to solve!! 3x^3y^2 +1÷9y
1 answer:
Answer:
Step-by-step explanation:
Given the expression
According to the order of operation with respect to PEMDAS
- Paretheses
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
so
- 1 ÷ 9y is solved first
Thus, the expression becomes
There are no like terms involved in the expression.
The expression is very much simplified.
Thus:
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( + 4)(
- 4)
To solve this question you must FOIL (First, Outside, Inside, Last) like so
First:
(x^2 + 4)(x^2 - 4)
x^2 * x^2
x^4
Outside:
(x^2 + 4)(x^2 - 4)
x^2 * -4
-4x^2
Inside:
(x^2 + 4)(x^2 - 4)
4 * x^2
4x^2
Last:
(x^2 + 4)(x^2 - 4)
4 * -4
-16
Now combine all the products of the FOIL together like so...
x^4 - 4x^2 +4x^2 - 16
Combine like terms:
x^4 - 4x^2 +4x^2 - 16
- 4x^2 +4x^2 = 0
x^4 - 16 <<<This is your answer
Hope this helped!
~Just a girl in love with Shawn Mendes