Top answers

Please explain how to multiply two exponential expressions

In the multiplication of exponential expressions, only exponents are added given that the expressions share the same base. If this is not the case, the expression remains the same or can be simplified. Hence...
AM
Answered by Alvaro M. • Maths tutor
3350 Views

Solve the following simultaneous equations: 2x - 3y = 16, x + 2y = -6

First we label the two equations as (1) and (2):2x - 3y = 16 (1)x + 2y = -6 (2)We want both equations to have the same number before one of the variables so the easiest way is to multiply equation (2) by two...
TD
Answered by Tutor401319 D. • Maths tutor
5565 Views

The diameter of a circle is 14cm, work out its area

The formula for the area of a circle is π x r 2 and the radius of the circle (r) is found when you divide the diameter (given in the question) by 2. Therefore, when plugging in the radius (14 divided by 2 = ...
PN
Answered by Peter N. • Maths tutor
6888 Views

Factorise X^2-X-20

(X+4)(X-5)
SW
Answered by Stephen W. • Maths tutor
3868 Views

Solve the following simultaneous equations: 3x+y=11, 2x+y=8

x=3, y=2
RS
Answered by Reuben S. • Maths tutor
3142 Views