Aboat is traveling at a velocity represented by : 2x^3-10x^2+72x3−10x2+7. at the same time, current is pushing the boat in the same direction with a velocity given by : 5x^3+19x^2+4x5x3+19x2+4x. what is the total traveling velocity of the boat?

7x^3 +9x^2 +4x +7

The total velocity is represented by the sum of the two polynomials:

(2x^3-10x^2+7) + (5x^3+19x^2+4x) = x^3·(2+5) +x^2·(-10+19) +4x +7

... = 7x^3 +9x^2 +4x +7

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )