Got it now?can you show some workings too please that would be great
1) (q+4)(q+5) expand and simplify i got - q(squared)+9q+20
simplified 9q(cubed) + 20
You can't combine and , they have different powers (you multiplied them), leave it in the quadratic form. By simplifying it means combine all your like terms, like 5q & 4 q
2) expand and simplify help?
F.O.I.L. First. Outer. Inner. Last
3) Solve 5(x+1)=3x + 12
First, distribute your 5 through (x+1) to get 5x +5 = 3x + 12. Then solve for x
4)facotorise x(squared) + 5x + 4
What two numbers, when added together give you 5 AND when multiplied together give you 4? (x+1)(x+4) right?
5) solve x(squared) + 5x + 4 = 0
You will have two answers. See #4. You can either factor it like I did above or use the quadratic equation to get your answers.