What is factor 9x^2-42xy+49y^2 ?

The solution to factor 9x^2-42xy+49y^2 is (3x-7y)^2

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factor 9x^2-42xy+49y^2

factor

9 x^{2} - 42 x y + 49 y^{2}

(3 x - 7 y)^{2}

Solution steps

9 x^{2} - 42 x y + 49 y^{2}

Rewrite in the form of

a^{2} + 2 ab + b^{2} :

9 x^{2} = (3 x)^{2}

49 y^{2} = (7 y)^{2}

- 42 x y = - 2 \cdot 3 x \cdot 7 y

= (3 x)^{2} - 2 \cdot 3 x \cdot 7 y + (7 y)^{2}

Apply Perfect Square Formula:

a^{2} - 2 ab + b^{2} = (a - b)^{2}

(3 x)^{2} - 2 \cdot 3 x \cdot 7 y + (7 y)^{2} = (3 x - 7 y)^{2}

= (3 x - 7 y)^{2}

(\frac{1}{8})^{- \frac{4}{3}}

(- 9 n^{4} + 8) - (- 9 n^{4} + 2 n^{3} + 5 n^{2})

0.05 \cdot 9.8

10 x - (- 4) = 18

∣ x - 5 ∣ - 1 \leq 2

What is factor 9x^2-42xy+49y^2 ?
The solution to factor 9x^2-42xy+49y^2 is (3x-7y)^2