Please can someone help?
Factorise 9p squared - 16Q squared
And also, what does: write down an expression in terms of P mean
+130516 9P^2 - 16Q^2 this is a difference of two squares...to factor it, take the square root of both terms
3P and 4Q
Write them once separated by a plus and once separated by a minus
(3p + 4Q) (3P - 4Q) and there you go
--------------------------------------------------------------------------------------------------
Suppose we had
30 = 2P + 5Q to write this in terms of P, subtract 5Q from both sides
30 - 5Q = 2P now, we just want P by itself, so divide both sides by 2
[30 - 5Q] / 2 = P
And we've written this in terms of P......
+130516 9P^2 - 16Q^2 this is a difference of two squares...to factor it, take the square root of both terms
3P and 4Q
Write them once separated by a plus and once separated by a minus
(3p + 4Q) (3P - 4Q) and there you go
--------------------------------------------------------------------------------------------------
Suppose we had
30 = 2P + 5Q to write this in terms of P, subtract 5Q from both sides
30 - 5Q = 2P now, we just want P by itself, so divide both sides by 2
[30 - 5Q] / 2 = P
And we've written this in terms of P......
