Mathematics, 24.06.2020 21:01 markmeinberg
1. a+b+c=9 and ab+bc+ca =26 find a²+b²+c².
2. if 2x +3y=12 and xy=6 find the value of 8x³+27y³.
3. factorise (a+b)³-(a-b)³.
4. if a+b+c =5 and ab+bc+ca =10 then prove that a³+b³+c³-3abc=-25
Plzzcan somone solve these question its urgent
Answers: 1
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Mathematics, 21.06.2019 15:00
1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.
Answers: 1
1. a+b+c=9 and ab+bc+ca =26 find a²+b²+c².
2. if 2x +3y=12 and xy=6 find the value of 8x³+27y³.
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