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Popular >

expand (9x+5)^2

Solution

expand

(9 x + 5)^{2}

Solution

81 x^{2} + 90 x + 25

Solution steps

(9 x + 5)^{2}

Apply Perfect Square Formula:

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

(9 x + 5)^{2} = (9 x)^{2} + 2 \cdot 9 x \cdot 5 + 5^{2}

= (9 x)^{2} + 2 \cdot 9 x \cdot 5 + 5^{2}

Simplify

(9 x)^{2} + 2 \cdot 9 x \cdot 5 + 5^{2} : 81 x^{2} + 90 x + 25

= 81 x^{2} + 90 x + 25

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Frequently Asked Questions (FAQ)

What is expand (9x+5)^2 ?
The solution to expand (9x+5)^2 is 81x^2+90x+25