solusi (2x-3y)³- (2x + 3y)³
please reply fast
Answers
Answered by
0
Answer:
(a+b)
3
−(a−b)
3
=a
3
+b
3
+3a
2
b+3ab
2
−(a
3
−b
3
−3a
2
b+3ab
2
)
=2b
3
+6a
2
b
=2b(b
2
+3a
2
)
Thus
(2x+3y)
3
−(2x−3y)
3
=3y((3y)
2
+3⋅(2x)
2
)=3y(9y
2
+12x
2
)
=9y(3y
2
+4x
2
Answered by
0
Answer:
0
Step-by-step explanation:
identify:- (a-b)³= a³ - b³ - 3(a²b) + 3(ab²)
(a+b)³= a³+ b³+3(a²b) + 3(ab²)
=(2x)³ - (3y)³ - 3(2x)²(3y) - 3(2x)(3y)² - (2x+3y)³
=8x³ - 27y³ - 36x²y - 54xy² - (2x³) + (3y)³ + 3(2x)²(3y) + 3(2x)(3y)²
=8x³ - 27y³ - 36x²y - 54xy² - 8x³ + 27y³ + 36x²y + 54xy²
= ANSWER = 0
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