Math, asked by vjyadav84, 1 month ago

Find the value of x in (2-7x)/(4+5x)=3/5

Answers

Answered by AyushMehak
0

2x4+5x3+4x2−x+41 ---(1)</p><p></p><p>when x=−2−3i=−(2+3i)---(2)</p><p></p><p>x2=(2+3i)2</p><p></p><p>=4+3(i)2+43i </p><p></p><p>=4−3+43!  (∵i2=−1)</p><p></p><p>x2=1+43i ---(3)</p><p></p><p>x3=x2.x</p><p></p><p>=(1+43i)[−(2+3i)]</p><p></p><p>=−(2+3i+83i+12!2)</p><p></p><p>=−(2−12+93i)</p><p></p><p>x3=10−93i ---(4)</p><p></p><p>x4=(x2)2 </p><p></p><p>=(1+43i)2</p><p></p><p>=1+48!2+8i3</p><p></p><p>=1−48+8i3 (i2=−1)</p><p></p><p>x4=−47+8!3---(5) </p><p></p><p>From (1),(2),(3),(4) and (5) </p><p></p><p>2(−47+8i3)+5(10−93i)+7(1+43i)−(−23i)+41 −94+16i3+50−453i+7+283i+2+3i+41 </p><p></p><p>=6  d)</p><p></p><p>

Answered by seemapadhy
0

6x

is the ans

have a great day

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