Question

Determine the value of x-{(3)³}³ = 3⁷x​

Answer 1

${\underline{\bold{Answer...{\heartsuit}}}}$

$(x+i)³=(x-i)³ expand$

$x³+3x²i-3x-i=x³-3x²i-3x+i removing x³-3x each side$

$3x²i-i=-3x²i+i collecting like terms$

$6x²i-2i=0 divide each side by 2$

$3x²i-i=0 factor the i$

$i(3x²-1)=0$

$this implies that 3x²-1=0 therefore adding 1 each side$

$3x²=1 divide by 3$

$x²=1/3$

$x=+/-sqrt 1/3$

Answer 2

Answer:

solution

{(3)³}³=3⁷x

=>(3)³×³=3⁷x

=>3⁹=3⁷x

=>now the numeriacal 3 is same so it's cancel now only the power left so we will do maths now with power

=>x=⁹×⁷

=>x=⁶³