Jawaban:
10
[tex] {10a}^{2}+{12b}^{2} + {12c}^{2} - 6ab + 15bc[/tex]
Penjelasan dengan langkah-langkah:
2a(5a -3b +6c ) -3b(2a -4b+5c)
+6c(-2a +5b+2c)
(10a2-6ab+12ac)-(6a2-12b2+15bc)+(-12ac+30bc+12c2)
10a2-6ab+12ac-6a2+12b2-15bc-12ac+30bc+12c2
10a2+12b2+12c2-6ab+15bc
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Jawaban:
10
[tex] {10a}^{2}+{12b}^{2} + {12c}^{2} - 6ab + 15bc[/tex]
Penjelasan dengan langkah-langkah:
2a(5a -3b +6c ) -3b(2a -4b+5c)
+6c(-2a +5b+2c)
(10a2-6ab+12ac)-(6a2-12b2+15bc)+(-12ac+30bc+12c2)
10a2-6ab+12ac-6a2+12b2-15bc-12ac+30bc+12c2
10a2+12b2+12c2-6ab+15bc