What is factor 25-81x^4 ?

The solution to factor 25-81x^4 is (5+9x^2)(5-9x^2)

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factor 25-81x^4

factor

25 - 81 x^{4}

(5 + 9 x^{2}) (5 - 9 x^{2})

Solution steps

25 - 81 x^{4}

Apply exponent rules

= 5^{2} - (9 x^{2})^{2}

Apply Difference of Two Squares Formula:

x^{2} - y^{2} = (x + y) (x - y)

5^{2} - (9 x^{2})^{2} = (5 + 9 x^{2}) (5 - 9 x^{2})

= (5 + 9 x^{2}) (5 - 9 x^{2})

x^{2} - 2 x + 15 = 0

\frac{\frac{2}{3}}{\frac{1}{3}}

64 a^{4} - 8 a

\frac{1}{2 + 3}

- 13 x - 2 = - 10 x - 2