Question

(3x)^3 + (5x)^3 = ?

please send this answer I will mark you as brainlist

Answer 1

Answer:

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x ≓ 1.524074316

(3x3 - 5x) - 3 = 0

3x3 - 5x - 3 = 0

Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 3 and the Trailing Constant is -3.

The factor(s) are:

of the Leading Coefficient : 1,3

of the Trailing Constant : 1 ,3

Answer 2

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${(3x)}^{3} + {(5x)}^{3}$

$(3x \times 3x \times 3x) + (5x \times 5x \times 5x)$

$27x + 125x$

$152x$

$\large \red{ \bf{Hence \: solved \: ✔}}$