kumarmaanvi81 kumarmaanvi81

16-05-2020
Mathematics

contestada

factorise 2d^2-98 completely

Respuesta :

16-05-2020

Answer:

Hello,

2 (d + 7) (d - 7)

Step-by-step explanation:

2 d² - 98 = 2 (d² - 49) = 2 (d² - 7²)

a² - b² = (a + b) (a - b)

2 (d² - 7²) = 2 (d + 7) (d - 7)

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avalangdon101 avalangdon101

16-05-2020

2(d^2-49)

2(d-7) x (d+7)

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