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Using the quadratic formula factorise 2x^2 + 7x + 11 =0

Using the substitutions a=2, b=7 and c=11 with the quadratic formula we get two values of x at 3.39 and 0.89.
EA
Answered by Emily A. • Maths tutor
6956 Views

What are partial fractions for and how do I find them?

Being able to find partial fractions is very useful for complex algebraic fractions that cannot be intergrated in their current form. Breaking it down into a sum of it's partial fractions gives two (or more)...
CT
Answered by Christine T. • Maths tutor
4451 Views

Differentiate the following: 5x^3

=3*5x^2 =15x^2
LA
Answered by Lavin A. • Maths tutor
4773 Views

What is the area of a circle with a diameter of 3cm? (To 2 d.p.)

= pi * r^2 =pi * 1.5^2 =pi * 1.5 * 1.5 =7.07 cm^2
LA
Answered by Lavin A. • Maths tutor
3694 Views

Solve the simultaneous equations 3x + 2y = 4, 4x + 5y = 17

X = -2 Y = 5
TK
Answered by Tahira K. • Maths tutor
4500 Views