Question

Factorise
${49p}^{2} - 36$
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Answer 1

Answer:

Step-by-step explanation:

49p² - 36 = 7²p² - 6²

                = (7p)² - 6²    {a² - b² = (a + b)(a - b) ;  here a = 7p & b = 6}

               = (7p + 6)(7p - 6)