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Apply FOIL (First, outside, inside, last): (x + 4)(x - 5) = x² - 5x + 4x -20 = x² - x -20 x(x + 4)(x - 5) = x( x² - x -20 ) = x³ - x²- 20x

To see if (0,8) lies on the line y, substitute 0 (the x coordinate) into y = 4x+9 so y=4(0)+9 y=4(0)+9 therefore y= 0+9 = 9since the output (9) is not the same as the respective coordinate (8), (0,8) d...

For example x² - 2x - 35 = 0You would have two approaches to this question. You can either use the quadratic formula or you could simplify the expression. Using the formula you would have x = (...

Question: 2 1/7 + 1 1/4. Step 1: Rewrite the calculation to simplify (Combine integers) = 2+1+(1/7)+(1/4)=3+(1/7)+(1/4) Step 2: Find the lowest common factor of 4 and 74 ...

Make y the sbject of the second eqautiom y=6x+2. substitute this for the y in the first equation.the first equation now looks like x² -(6x+2)=14. Open the brackets and subtract 14 from both si...