226k views
1 vote
What is a solution to (x 6)(x 2) = 60?x = ?6x = ?4x = 4x = 12

User Dylan
by
7.6k points

1 Answer

1 vote

Answer:

Assuming that the question is (x + 6)(x + 2) = 60

Among the given options, the only solution is x = 4

(The other solution is x = -12 but that is not included in the given options I think)

Explanation:

I assume the question is,

(x+6)(x+2) = 60

Then, inserting x = 4 gives,

(4 + 6)(4 + 2) = 60

(10)(6) = 60

60 = 60

hence x = 4 is a solution.

Finding the other solution,

(x+6)(x+2) = 60,

x^2 + 2x + 6x + 12 = 60

x^2 + 8x + 12 - 60 = 0

x^2 + 8x - 48 = 0

x^2 +12x - 4x - 48 = 0

x(x + 12) - 4(x + 12) = 0

(x - 4)(x + 12) = 0

So, the solutions are,

x = 4, and x = -12

User Bruno Domingues
by
7.7k points

No related questions found