Mathematics, 05.02.2021 17:30 haleymatthews3

What is the answer to 6x^3+2x-18=0

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Mathematics, 20.06.2019 18:04, Uc34758

Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?

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Mathematics, 21.06.2019 18:10, NeverEndingCycle

True or false look at the picture pls : /

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If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

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