hanna13430
hanna13430
03-11-2019
Mathematics
contestada
Factorising quadratics 2nd page
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salatulmaghrib
salatulmaghrib
03-11-2019
a^2-b^2=(a+b)(a-b)
1: x^2-4=(x+2)(x-2)
2: (x+8)(x-8)
3: (x+10)(x-10)
4: (x+14)(x-14)
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