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Differentiate the equation 3x^4+6x^2-7x+2

To differentiate, multiply the power by the coefficient and then take one off the power so the answer is 12x 3 + 12x - 7
AS
Answered by Aimee S. • Maths tutor
3265 Views

Write an equation for a line parallel to 2y = 4x - 10

Divide the equation by two to get y = 2x - 5This shows that the gradient of the line is 2. Any other equation with the gradient equal to 2 (the x coefficient) when the y coefficient is 1.e.g. y = 2x +12 or y...
AS
Answered by Aimee S. • Maths tutor
4304 Views

Show that the recurring decimal 0.0151515..=1/66 (4H)

0.0151515..=x15.151515..=1000x999x=15.1x=15.1/999=1/66
JH
Answered by Josh H. • Maths tutor
6314 Views

(a) The equation of a line L is 2x-3y=6. Find the gradient of L. (b) Find the equation of the line which is parallel to L and passes through the point (6,9)

(a) y=mx+c3y=2x-6y=(2x-6)/3(b) y=mx+c9=(2/3)x6+cc=5y=(2/3)x+5
JH
Answered by Josh H. • Maths tutor
10093 Views

How do we expand (3y-2)^2?

(3y-2)^2=(3y-2)(3y-2)You're basically multiplying 3y-2 by itself.Let's start with the 3x in the first bracket.3y x 3y + 3y x (-2)=9y^2-6yNow let's move on to the -2 in the first bracket.-2 x 3y + (-2) x (-2)...
SL
Answered by Sum-Ping L. • Maths tutor
5133 Views