valmen1313
valmen1313
19-03-2017
Mathematics
contestada
please foil (x^2 - (1/5x^2))^2
Respuesta :
PythonAndPseint
PythonAndPseint
19-03-2017
(x² - (1/5x²))²
Using (a-b)² = a²-2×ab+b²
(x²)² -2x²×(1/5x)² + (1/5x²)²
x⁴ -2x⁴ + 1/25⁴
We developed the fraction to obtain the lowest common denominator
x⁴/1 - 2x⁴/5 +x⁴/25
25×(X⁴)/25×1 - 5×(2x⁴)/5×5 + x⁴/25
25×⁴/25 - 10x⁴/25 + x⁴/25
{25×⁴- 10x⁴ + 1x⁴}/25
{26×⁴- 10x⁴}/25
{26×⁴- 10x⁴}/25
16x⁴/25
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