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Addition and Subtraction of Algebraic Expression

Subtract 3m...

Question

Subtract $3 m n - m^{2}$ from $8 + 3 m^{2} - 3 m n$

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Solution

According to the question,
$\begin{matrix} 8 + 3 m^{2} - 3 m n - (3 m n - m^{2}) = 4 m^{2} - 6 m n + 8 \end{matrix}$

Hence, this is the answer.

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Question 3 (v)

Subtract:

$- m^{2} + 5 m n f r o m 4 m^{2} - 3 m n + 8$

Q. Subtract the following:
(1)

16 x^{3}

15 x^{3} + 3 x^{2} - 25

5 m^{2} + 3 m n + n^{2}

m^{2} + 6 m n - 7 n^{2}

Q. Multiply:

(4) (m² − 3mn + n²) (5mn + 4)

Q. Find the LCM of

m^{2} - n^{2}, 3 m^{2} - 3 m n

3 m n + (- 5 m n) =

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