What is expand (3.2a-4.5b)^2 ?

The solution to expand (3.2a-4.5b)^2 is 10.24a^2-28.8ab+20.25b^2

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expand (3.2a-4.5b)^2

expand

(3.2 a - 4.5 b)^{2}

10.24 a^{2} - 28.8 ab + 20.25 b^{2}

Solution steps

(3.2 a - 4.5 b)^{2}

Apply Perfect Square Formula:

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

(3.2 a - 4.5 b)^{2} = (3.2 a)^{2} - 2 \cdot 3.2 a \cdot 4.5 b + (4.5 b)^{2}

= (3.2 a)^{2} - 2 \cdot 3.2 a \cdot 4.5 b + (4.5 b)^{2}

Simplify

(3.2 a)^{2} - 2 \cdot 3.2 a \cdot 4.5 b + (4.5 b)^{2} : 10.24 a^{2} - 28.8 ab + 20.25 b^{2}

= 10.24 a^{2} - 28.8 ab + 20.25 b^{2}

2 x + 20

(x - 7) (x - 5)

lo g_{6} (18)

\frac{3}{x - 3} - \frac{7}{x + 3}

\frac{1}{3} (9 - 6 m) + \frac{1}{4} (12 m - 8)

What is expand (3.2a-4.5b)^2 ?
The solution to expand (3.2a-4.5b)^2 is 10.24a^2-28.8ab+20.25b^2