What is expand (18ab+2a)^2 ?

The solution to expand (18ab+2a)^2 is 324a^2b^2+72a^2b+4a^2

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expand (18ab+2a)^2

expand

(18 ab + 2 a)^{2}

324 a^{2} b^{2} + 72 a^{2} b + 4 a^{2}

Solution steps

(18 ab + 2 a)^{2}

Apply Perfect Square Formula:

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

(18 ab + 2 a)^{2} = (18 ab)^{2} + 2 \cdot 18 ab \cdot 2 a + (2 a)^{2}

= (18 ab)^{2} + 2 \cdot 18 ab \cdot 2 a + (2 a)^{2}

Simplify

(18 ab)^{2} + 2 \cdot 18 ab \cdot 2 a + (2 a)^{2} : 324 a^{2} b^{2} + 72 a^{2} b + 4 a^{2}

= 324 a^{2} b^{2} + 72 a^{2} b + 4 a^{2}

3 x^{4}

m^{2} + 8 m + 15

1 \frac{2}{3} + (- \frac{2}{5})

\frac{2}{3} x - x

x^{2} y - 16 y + 32 - 2 x^{2}

What is expand (18ab+2a)^2 ?
The solution to expand (18ab+2a)^2 is 324a^2b^2+72a^2b+4a^2