Question

Form an equation : If the sum of natural number 'x' and its squar is 30​

Answer 1

Step-by-step explanation:

Given natural number is x.

Square on x should x².

According to question, sum of number and its square is 30.

So,

=> x + x² = 30

=> x² + x - 30 = 0

Now the desired equation is formed.

Answer 2

Answer:

$x + x {}^{2} = 30$

$x {}^{2} + x - 30 = 0$

$x {}^{2} + 6x - 5x - 30 = 0$

$x(x + 6) - 5(x + 6) = 0$

x = 5 , x = -6

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