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Verified answer
16) jawab :2(-3+-2)2di pangkatkan -5
=1/32
2⁻³ ˣ 2⁻² = ?
¹/₈ ₓ ¹/₄ = ¹/₃₂
tujuh belas
√32 -√2 + √128
√4.8 - √2 + √4.32
2√8 -√2 + 2√32
2√4.2 - √2 + 2√4.8
2.2√2 - √2 + 2.2√8
4√2 - √2 + 4√8
4√2 - √2 + 4√4.2
4√2 - √2 + 4.2√2
4√2 -√2 + 8√2
11√2
delapan belas
2x² - x - 6 + 5x² - 5x + 10
7x² - 6x + 4
(dikurangkan dan ditambahkan saja)
sembilan belas
5(x + 3) - 25 = 3(4x - 1)
5x + 15 - 25 = 12x - 3
5x - 12x = -3 - 15 + 25
-7x = -18 + 25
-7x = 7
x = ⁷/₋₇
x = -1
x - 1
= -1 - 1
= -2