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Popular >

factor 81-c^2

Solution

factor

81 - c^{2}

Solution

(9 + c) (9 - c)

Solution steps

81 - c^{2}

Rewrite

81

as

9^{2}

= 9^{2} - c^{2}

Apply Difference of Two Squares Formula:

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

9^{2} - c^{2} = (9 + c) (9 - c)

= (9 + c) (9 - c)

Popular Examples

simplify sqrt(37/36)simplify

\frac{37}{36}

simplify (1/2+(sqrt(3))/2 i)^2 simplify

(\frac{1}{2} + \frac{3}{2} i)^{2}

simplify (2(2))/(2+1)simplify

\frac{2 ( 2 )}{2 + 1}

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

200=1.1x+0.06x^2

200 = 1.1 x + 0.06 x^{2}

Frequently Asked Questions (FAQ)

What is factor 81-c^2 ?
The solution to factor 81-c^2 is (9+c)(9-c)