Pemfaktoran Ingat :a² - b² = (a + b)(a - b)1) (9b² - 16c²)/(15b - 20c)= ((3b)² - (4c)²)/(15b - 20c)= (3b + 4c)(3b - 4c)/5(3b - 4c)= (3b + 4c)/52) (48x + 72y)/(64x² - 144y²)= 24(2x + 3y)/16(4x² - 9y²)= 3(2x + 3y)/2(4x² - 9y²)= 3(2x + 3y)/2(2x + 3y)(2x - 3y)= 3/[2(2x - 3y)]= 3/(4x - 6y)#backtoschoolcampaign==========================Untuk contoh soal lainnya, bisa dilihat di link berikut :brainly.co.id/tugas/16340353===========================Kelas : 8Mapel : MatematikaKategori : Operasi AljabarKata Kunci : PemfaktoranKode : 8.2.1 (Kelas 8 Matematika Bab 1 - Operasi Aljabar)
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Pemfaktoran
Ingat :
a² - b² = (a + b)(a - b)
1) (9b² - 16c²)/(15b - 20c)
= ((3b)² - (4c)²)/(15b - 20c)
= (3b + 4c)(3b - 4c)/5(3b - 4c)
= (3b + 4c)/5
2) (48x + 72y)/(64x² - 144y²)
= 24(2x + 3y)/16(4x² - 9y²)
= 3(2x + 3y)/2(4x² - 9y²)
= 3(2x + 3y)/2(2x + 3y)(2x - 3y)
= 3/[2(2x - 3y)]
= 3/(4x - 6y)
#backtoschoolcampaign
==========================
Untuk contoh soal lainnya, bisa dilihat di link berikut :
brainly.co.id/tugas/16340353
===========================
Kelas : 8
Mapel : Matematika
Kategori : Operasi Aljabar
Kata Kunci : Pemfaktoran
Kode : 8.2.1 (Kelas 8 Matematika Bab 1 - Operasi Aljabar)