Expand and simplify (x+5)(x+7)

Front - Outer -Inner -Last (FOIL)
x X x = x^2x X 7 = 7x 5 X x = 5x5 X 7 = 35
7x + 5x = 12x
x^2 + 12x + 35

EM

Related Maths GCSE answers

All answers ▸

Solve the Simultaneous Equation: 2x + 3y = 15 and 5x + 4y = 13


Solve the simultaneous equations: 5x + 3y = 41 and 2x + 3y = 20 Do not use trial and error.


A ladder 6.8m long is leaning against a wall, the foot of the ladder is 1.5m from the wall, find the height that the ladder reaches up the wall.


Gavin, Harry and Isabel each earn the same salary. Gavin saves 28% of his salary. Harry spends 3/4 of his salary and saves the rest. The amount Isabel saves:The amount she spends=3:7. Who saves the most?