Penjelasan dengan langkah-langkah:
x²-2x - 10
x1 + x2 = -b/a =-(-2)/1 = 2
x1 . x2 = c/a = -10/1 = -10
x1²+x2² = (x1+x2)²-2(x1.x2)
=2²-2(-10)
=4-(-20)
= 24
'follow ya'
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Penjelasan dengan langkah-langkah:
x²-2x - 10
x1 + x2 = -b/a =-(-2)/1 = 2
x1 . x2 = c/a = -10/1 = -10
x1²+x2² = (x1+x2)²-2(x1.x2)
=2²-2(-10)
=4-(-20)
= 24
'follow ya'