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TGAU Mathemateg Datrys Problemau Algebra Haen Uwch

TGAU Mathemateg Datrys Problemau Algebra Haen Uwch. Mae gan giwboid ochrau 5 cm o hyd wrth x cm o hyd wrth ( x + 4 ) cm o hyd. Cyfaint y ciwboid yw 60cm 3 . Beth yw dimensiynau’r ciwboid ?. 5 cm. Help llaw. x + 4. x.

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TGAU Mathemateg Datrys Problemau Algebra Haen Uwch

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  1. TGAU Mathemateg DatrysProblemau Algebra HaenUwch

  2. Mae gan giwboid ochrau 5 cm o hyd wrth x cm o hyd wrth (x + 4)cm o hyd. Cyfaint y ciwboidyw 60cm3. Beth ywdimensiynau’rciwboid? 5cm Help llaw x + 4 x Ysgrifennwch a datryswchhafaliadargyfercyfaint y ciwboididdarganfodgwerth x.

  3. ATEB Cyfaint y ciwboid = 5x( x + 4) = 60 5x2 + 20x = 60 5x2 + 20x – 60 = 0 5(x2 + 4x – 12) = 0 x2 + 4x – 12 = 0 (x + 6 ) ( x – 2 ) = 0 x + 6 = 0 or x – 2 = 0 x = -6 x = 2 Nidyw x = -6 cm ynbosibyn yr achosyma felly mae x = 2cm Y dimensiynauyw 5cm wrth 2cm wrth 6cm

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