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Factorise and solve x2 - 8x + 15 = 0.
When factorising there are 3 things to look for;
A common factor in each component of the equation. In this case there are no commo...
8a3bab4 2a3b2 (can write this more clearly by hand using whiteboard) First go about seperating and collecting terms. Begin with the top line. ...
It's a two part question. First Part Expand the equation the left hand side to get a^(2)*x-b^(2)*x^3 thus comparing co-efficients a^2=25 and b^2=4 thus a= 5 b=2 Second Part Therefore b^(-a) ...
7x+3y-4 > 5y-19x
Adding 19x to both sides:
26x+3y-4 > 5y
Subtracting 3y from both sides:
26x-4 > 2y
Divide both sides by 2 to put the expression in its simplest...
Quadratic inequalities generally don't arrive in the standard quadratic form (Ax^2 + Bx +c) and so can be sometimes difficult to spot. However, if you see an X^2 - or brackets that expand to X^2 - on eith...
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