+ + = +
- + = ?
im doing homework abut brackets and i've answered the questions i know like : (x+1)(x+9) = x(squared)+10x+9
but i don't get this one cause of the symbols should the answer have 2 minus ?
(x-6)(x+9)
the answer is x(squared)+3x-54
(x-6)(x+9)
x(squared)+9x-6x-54
x(squared)+3x-54
Online x(squared) is indicated by x^2.
I hope this helps a little more.
To solve the expression (x-6)(x+9), we need to apply the distributive property of multiplication over addition. This property states that for any numbers a, b, and c, the multiplication of (a+b) and c is equal to ac + bc.
In this case, we have two binomials: (x-6) and (x+9). We can distribute the x in the first binomial across the second binomial and combine like terms:
(x-6)(x+9) = x(x+9) - 6(x+9)
Expanding the expression further:
= x^2 + 9x - 6x - 54
Combining like terms:
= x^2 + 3x - 54
Therefore, the answer to (x-6)(x+9) is x^2 + 3x - 54. There is no need for two minus signs because when we distribute the negative sign from (x-6), it affects both terms within the second binomial, resulting in a subtraction operation between 6 and 9.