solve in R 8(√(x^4 +1))+5(√(x^3 +1))=7x^2 +12


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Question Number 91872 by M±th+et+s last updated on 03/May/20

$s o l v e i n R$ $8 \sqrt{x^{4} + 1} + 5 \sqrt{x^{3} + 1} = {7 x}^{2} + 12$
Commented by MJS last updated on 03/May/20
$you can { (((square+transform)×2 and then)),(( approximate the 8^(th) degree polynome)),((or approximate the given equation)) :} I get x_1 ≈−.367792 x_2 ≈.440570 x_3 ≈1.16117$
$you can {\begin{cases} (square + transform) \times 2 and then \\ approximate the 8^{th} degree polynome \\ or approximate the given equation \end{cases}$ $I get$ $x_{1} \approx - . 367792$ $x_{2} \approx . 440570$ $x_{3} \approx 1.16117$
Commented by M±th+et+s last updated on 03/May/20

$t h a n k s s i r b u t c a n y o u s h o w t h e s t e p s$ $o f t h e s o l u t i o n$
Commented by M±th+et+s last updated on 03/May/20

$a n d t h e v a l u e s a r e c o r r e c t$
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