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NikAS [45]
3 years ago
14

How to factor out 2x^4 -8x^2

Mathematics
1 answer:
mojhsa [17]3 years ago
3 0
2x⁴ - 8x²

common factor is 2x²
therefore, you need to divide everything by <span>2x²
   2x</span>⁴ ÷ 2x² = x²
   8x² ÷ <span>2x² = 4

</span><span> 2x² (x</span>²-4)

for x<span>²-4, you can also factor that using difference of squares
which is a</span>² - b² = (a+b)(a-b)
               x²-4 = (x+2)(x-2)

final answer: 2x² <span>(x+2)(x-2)</span>
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