Answers>Maths>GCSE>Article

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

Answered by Ellie M. • Maths tutor

13163 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Simplify (14y^2)/y + 5y x 2

Solve algebraically the simultaneous equations, giving your answers in terms of b : 3x+by=5, x-y=-2

Find x: 4x + 7 = 27

Solve these simultaneous equations: 3y + x = 18 and x - 4y = -10.