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Popular >

expand 9r(r+2s-9)

Solution

expand

9 r (r + 2 s - 9)

Solution

9 r^{2} + 18 rs - 81 r

Solution steps

9 r (r + 2 s - 9)

Apply the distributive law:

m (a + b + c) = ma + mb + m c

9 r (r + 2 s - 9) = 9 rr + 9 r \cdot 2 s + 9 r (- 9)

= 9 rr + 9 r \cdot 2 s + 9 r (- 9)

Simplify

9 rr + 9 r \cdot 2 s + 9 r (- 9) : 9 r^{2} + 18 rs - 81 r

= 9 r^{2} + 18 rs - 81 r

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Frequently Asked Questions (FAQ)

What is expand 9r(r+2s-9) ?
The solution to expand 9r(r+2s-9) is 9r^2+18rs-81r