please help me to solve this problem
-2 x(-7)x (-9)
-2 x ( -7 ) x ( -9 ) = -2 ( - 7 ) x ( - 9 ) = 14 x ( - 9 ) = - 126 x
-2 x(-7)x (-9)
= -126 if the x is a multiplication sign
or
= -126x^2 if the x is a variable
To solve the expression -2 x (-7) x (-9), you can follow the order of operations, also known as PEMDAS. PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
In this case, there are no parentheses or exponents, so we can focus on the multiplication operation:
-2 x (-7) x (-9)
To multiply two negative numbers, you can follow these steps:
1. Multiply the absolute values of the numbers together.
|-2| x |-7| x |-9| = 2 x 7 x 9 = 126.
2. Determine the sign of the product based on the number of negative factors involved.
Since there are three negatives in the expression (-2, -7, -9), the product will be negative.
Therefore, the result of -2 x (-7) x (-9) is -126.