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Yotta Paper 2 · Q20

Paper 2Algebra

Solve these simultaneous equations to find the real numbers x,yx,y and zz. Hence find x+y2+z3x+y^2+z^3.

x2+6y+10=03y2+6z+5=−140x−5z2=70\begin{aligned}x^2+6y+10&=0\\3y^2+6z+5&=-1\\40x-5z^2&=70\end{aligned}
A44
B66
C1010
D1212
E1414
F1616
GNo solution exists

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