Question

factories
${49a}^{2} - 7ab + {25b}^{2}$
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Answer 1

Answer:

${49a}^{2} - 7ab + {25b}^{2}$

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

${a}^{2}={7a}^{2}$

${b}^{2}={5b}^{2}$

therefore answer will be

${(7a+5b)}^{2}$