25p2- 49pq2 factorise
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(5-7)(5+7) may be...
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25p^2 - 49q^2
We apply this formula
a^2 - b^2 = (a+b) (a-b)
= (5p)^2 - (7q)^2
= (5p + 7q) (5p - 7q)
Thanks
25p^2 - 49q^2
We apply this formula
a^2 - b^2 = (a+b) (a-b)
= (5p)^2 - (7q)^2
= (5p + 7q) (5p - 7q)
Thanks
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