calebloveing calebloveing

22-07-2017
Mathematics

contestada

what shows 23^2-17^2 being evaluated using the difference of perfect squares method

Respuesta :

Аноним Аноним

22-07-2017

23^2 - 17^2
= (23-17)(23+17)
= 6 * 40
= 240

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apologiabiology apologiabiology

22-07-2017

remember
a²-b²=(a-b)(a+b)

so
23²-17²=(23-17)(23+17)=(6)(40)=240

Answer Link

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