Please expand (y+2)(y-3).
We will use the FOIL method. Here FOIL stands for: First, Outside, Inside, Last.
This means we start by multiplying the first terms in each bracket together to get y2 .
Then we multiply the outside terms together, these are the furthest left and furthest right terms, so y and -3 giving -3y. (Don't forget the minus sign!)
Next we multiply the inside terms (the middle two terms) which are 2 and y giving 2y.
Finally we multiply the last terms in each bracket together which gives 2 x -3= -6.
Now add them together and write it out: (y+2)(y-3)=y2+2y-3y-6
Now collect like terms to give y2-y-6.
MB
Related Maths GCSE answers
All answers ▸Solve the simultaneous equations: 2x-y=x+4; x^2+4y^2=37
A right-angled triangle has an adjacent of (x + 1) and (x - 1). (a) Find the length of the hypotenuse in terms of x. (b) Explain why the triangle can't be an isoceles triangle.
N = 2a + b. a is a 2 digit square number, b is a 2 digit cube number. What is the smallest possible value of N?
Solve the next innequation: 12x-4>4x+12