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NCERT Solutions Class 8 Mathematics Solutions for Exercise 14.2 in Chapter 14 - Factorisation
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Factorise the expression:
25 m^{2}+30 m+9
Answer:
Solution:
\begin{array}{l} 25 \mathrm{m}^{2}+30 \mathrm{m}+9 \\ =(5 m)^{2}-2 \times 5 m \times 3+3^{2} \\ =(5 m+3)^{2} \\ \text { Using identity: }(x+y)^{2}=x^{2}+2 x y+y^{2} \end{array}
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