What is expand (7x^{a+2}+y)(7x^{a+2}+5y) ?

The solution to expand (7x^{a+2}+y)(7x^{a+2}+5y) is 49x^{2(a+2)}+42x^{a+2}y+5y^2

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expand (7x^{a+2}+y)(7x^{a+2}+5y)

expand

(7 x^{a + 2} + y) (7 x^{a + 2} + 5 y)

49 x^{2 (a + 2)} + 42 x^{a + 2} y + 5 y^{2}

Solution steps

(7 x^{a + 2} + y) (7 x^{a + 2} + 5 y)

Apply FOIL method

(7 x^{a + 2} + y) (7 x^{a + 2} + 5 y) : 49 x^{2 (a + 2)} + 42 x^{a + 2} y + 5 y^{2}

= 49 x^{2 (a + 2)} + 42 x^{a + 2} y + 5 y^{2}

(1 + \frac{d ^{2}}{5} + 6 \frac{d}{5})^{- 1}

10 (x + 1) - 5 (x - 1.2) + 35

x^{3} + x (x + 12) + 4 x^{2}

11 x^{2} - 88 x - 132

x^{2} \cdot (\frac{x}{y} - \frac{y}{x}) \cdot (\frac{y}{x} + \frac{x}{y}) \cdot y^{2}

What is expand (7x^{a+2}+y)(7x^{a+2}+5y) ?
The solution to expand (7x^{a+2}+y)(7x^{a+2}+5y) is 49x^{2(a+2)}+42x^{a+2}y+5y^2