Answer:
6x-30
Step-by-step explanation:
Just multiple like this (6)(x-5)
The line of reflection is x = 4
Answer:
x = 2
Step-by-step explanation:
Using the tangent ratio in the right triangle with either of the 2 angles and the exact value
tan60° =
tan60° = = =
Multiply both sides by x
6 = x ( divide both sides by )
x = × ← rationalising the denominator
x = = 2
Answer:
x = -6 and -1
Step-by-step explanation:
x^2 + 6x + 7
Factorise- find two numbers that multiply to be 6 and add to be 7: 6 and 1
(x+6)(x+1)
Set each expression equal to 0 and solve
x + 6 = 0 -> x = -6
x + 1 = 0 -> x = -1