2 x 2 − x − 6 = 0
( 2 x − 3 ) ( x + 2 ) = 0
2 x − 3 = 0
2 x = 3
x = 2 3
x + 2 = 0
x = − 2
x = 2 3 , 2
2 x 2 − x − 6 = 0 2 x 2 − 4 x + 3 x − 6 = 0 2 x ( x − 2 ) + 3 ( x − 2 ) = 0 ( 2 x + 3 ) ( x − 2 ) = 0 x = − 2 3 ∨ x = 2
To solve the quadratic equation 2 x 2 − x − 6 = 0 by factoring, we get the factors ( 2 x + 3 ) ( x − 2 ) = 0 . Setting each factor to zero gives the solutions: x = − 2 3 and x = 2 . Therefore, the roots of the equation are x = − 2 3 and x = 2 .
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Jawaban:Kurikulum di SD harus relevan dengan perkembangan usia dan kebutuhan anak-anak. Selain pengajaran mata pelajaran inti (bahasa Indonesia, matematika, ilmu pengetahuan alam, ilmu sosial, dll), kurikulum pendidikan di SD juga perlu mencakup aspek pengembangan karakter, seni, olahraga, serta pendidikan moral dan agama.