7- sinf ifodalarni soddalashtirish

7-sinf. ifodalarni soddalashtiramiz hisoblang 90 45 3 84 72 9 - 45 : 15 28 - 12 :8 + 27 36 18 : 2 5 biz sodda ifodalarni takrorlaymiz! taqsimot qonuni eslaymiz ! a (b + c) = ab + ac -3(a - 2b) = -3a + 6b 20(3 + x) = 60 + 20x taqsimot qonuni o’xshash hadlarni qavsdan tashqariga chiqarish haqida. ab + ac = a(b + c) 4a - 6a = a(4 - 6) = -2a -3a + 9 = 3(-a + 3) boshlaymiz … qavslarni ochamiz: 2(a + s) = -4(t - 2) = 12(-5 - t) = 3(-a - 2) = -3(-a - 2) = 2a + 2c -4t + 8 -60 - 12t -3a …

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