16x−20y=−5 16x-20y=-5\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:16x−20y=−5
−3+4+5−6−9+1−2-3+4+5-6-9+1-2−3+4+5−6−9+1−2
4x2−3x+1=04x^2-3x+1=04x2−3x+1=0
(4x2 y−5w3 z)2\left(4x^2\:y-5w^3\:z\right)^2(4x2y−5w3z)2
21(23)21\left(\frac{2}{3}\right)21(32)
(−7c + 8d)0.6\left(-7c\:+\:8d\right)0.6(−7c+8d)0.6
4p+5p−7p4p+5p-7p4p+5p−7p
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