What is factor 81r^2-16t^2 ?

The solution to factor 81r^2-16t^2 is (9r+4t)(9r-4t)

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factor 81r^2-16t^2

factor

81 r^{2} - 16 t^{2}

(9 r + 4 t) (9 r - 4 t)

Solution steps

81 r^{2} - 16 t^{2}

81 r^{2} = (9 r)^{2}

16 t^{2} = (4 t)^{2}

= (9 r)^{2} - (4 t)^{2}

Apply Difference of Two Squares Formula:

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

(9 r)^{2} - (4 t)^{2} = (9 r + 4 t) (9 r - 4 t)

= (9 r + 4 t) (9 r - 4 t)

3 - 2

2 - 28

6 \cdot 1 0^{7}

- (x + 1) (x - 2)

2 x (- 2 x)

What is factor 81r^2-16t^2 ?
The solution to factor 81r^2-16t^2 is (9r+4t)(9r-4t)