Which is a solution to (x – 3)(x + 9) = –27? x = –9 x = –3 x = 0 x = 6

x = 0

Step-by-step explanation:

Since the product is not equal zero, we need to multiply both parenthesis first:

Add 27 from both sides:

Factor out:

Apply the zero product:

The solutions of the equation are and .

We can conclude that the correct answer is x = 0.

An algebraic expression to represent 'four times a number n decrease by six' will be: 4n - 6

Step-by-step explanation:

Given the expression

''Four times a number n decrease by six''.

BREAK DOWN THE STATEMENT INTO AN ALGEBRAIC EXPRESSION

Let the number be = n

Four times a number 'n' means we need to multiply n by 4, so

Four times a number 'n' = 4n

Thus,

'Four times a number n decrease by six' means we need to subtract 6 from the 4n.

Therefore, an algebraic expression to represent 'four times a number n decrease by six' will be: 4n - 6