Question

Agar x square plus x equals to 5 then X + 3 ka whole cube + 1 upon X + 3 ka whole cube equals to what

Answer 1

Step-by-step explanation:

x^2+x=5

then

(x+3)^3+1= ?

x^2=5-x

0=5-x÷x^2 [ here one x gets cancel}

x=5. { here we again do a reciprocal}

this was our 1st equation

now let's start second equation by substituting 5 in this equation

then

(5+3)^3+1=. { here we use formula (a+b)^3

= a^3+b^3+3ab(a+b)

then

5^3+3^3+3(5)(3)(5+3)+1

=125+27+45(8)+1

=125+27+360+1=27486 is the ans