You need at least 3 points to sketch the line.
You need at least 3 points to sketch the line.
To factor this, first take the first expression x2. The only way to multiply 2 variables together and get that is x*x, so we know the first variable in each is x. (x+?)(x+?). Since we have a negative second term and a positive third term we know that both will be negative. So...
FOIL stands for First Outer Inner Last. It is used to multiply 2 binomials For example (x+4)(x-1) F(irst) (take the first term of each binomials and multiply them) - (x)*(x) = x2 O(uter) (take the outer term of each binomials and multiply them) - (x)*(-1)...
The first thing you do is multiply the right side out. So, x(x2 - 8x + 5x - 40) -> x(x2 - 3x - 40) -> x3 - 3x2 - 40x So y = x3 - 3x2 - 40x
The width of the rectangle is x, so the length is 1.3*x. The perimeter is 2*width + 2*length. The equation to solve then would be 2(1.3x) + 2(x) = 35 which is 2.6x + 2x = 35 which is 4.6x = 35 and solves to x = 7.6. So the width is 7.6 meters and the length is 1.3(7...