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2-3i-x-2-3-2i-y-2x-3y-5i-




Question Number 10789 by niraj last updated on 25/Feb/17
(2+3i)x^2 −(3−2i)y=2x−3y+5i
$$\left(\mathrm{2}+\mathrm{3}{i}\right){x}^{\mathrm{2}} −\left(\mathrm{3}−\mathrm{2}{i}\right){y}=\mathrm{2}{x}−\mathrm{3}{y}+\mathrm{5}{i} \\ $$
Answered by sandy_suhendra last updated on 25/Feb/17
(2+3i)x^2 −3y+2iy=2x−3y+5i  ⇒ (2+3i)x^2 =2x        (2+3i)x^2 −2x=0         x[(2+3i)x−2]=0         x=0  or  (2+3i)x=2                               x=(2/(2+3i))  ⇒ 2iy=5i         2y=5          y=2.5
$$\left(\mathrm{2}+\mathrm{3i}\right)\mathrm{x}^{\mathrm{2}} −\mathrm{3y}+\mathrm{2iy}=\mathrm{2x}−\mathrm{3y}+\mathrm{5i} \\ $$$$\Rightarrow\:\left(\mathrm{2}+\mathrm{3i}\right)\mathrm{x}^{\mathrm{2}} =\mathrm{2x} \\ $$$$\:\:\:\:\:\:\left(\mathrm{2}+\mathrm{3i}\right)\mathrm{x}^{\mathrm{2}} −\mathrm{2x}=\mathrm{0} \\ $$$$\:\:\:\:\:\:\:\mathrm{x}\left[\left(\mathrm{2}+\mathrm{3i}\right)\mathrm{x}−\mathrm{2}\right]=\mathrm{0} \\ $$$$\:\:\:\:\:\:\:\mathrm{x}=\mathrm{0}\:\:\mathrm{or}\:\:\left(\mathrm{2}+\mathrm{3i}\right)\mathrm{x}=\mathrm{2} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{x}=\frac{\mathrm{2}}{\mathrm{2}+\mathrm{3i}} \\ $$$$\Rightarrow\:\mathrm{2iy}=\mathrm{5i} \\ $$$$\:\:\:\:\:\:\:\mathrm{2y}=\mathrm{5} \\ $$$$\:\:\:\:\:\:\:\:\mathrm{y}=\mathrm{2}.\mathrm{5} \\ $$

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