Since there is no expression given, there is no sensible answer.
es
2
In this case N is variable for a math sentence. If the equation is n+7=9 n would equal 2.
4
5x = 5 times 9, 2y = 2 times 4 so 45 - 8 ie 37
The only expression that is equal to 6 9 2 is 6 9 2.
2
2
2
Any value of x! Multiplication is commutative, that is, the order of multiplication doesn't matter, so 2x3=3x2, 23x45=45x23, and so on. Hence, 2 times x and x times 2 are the same. Therefore, it doesn't matter what x is!
It depends on what precisely the question is. One possible answer is that the quadratic expression has a value of 2 when x = 0.
x2 is an expression that can be read "x squared" or "x to the power of two". It is equal to x times x.
In this case N is variable for a math sentence. If the equation is n+7=9 n would equal 2.
10
4
10
Both the prefix and the postfix increment operators increment the operand. The difference is what is the value of the expression during the evaluation of the expression. In the prefix form, the value is already incremented. In the postfix form, it is not. int a = 1; int b = ++a; // both a and b are now equal to 2 int a = 1; int b = a++; // a is equal to 2 and b is equal to 1
An equation with two equal signs is really to explicit equations (or three implicit ones). For example, expession 1 = expression 2 = expression 3 is equivalent to expression 1 = expression 2 AND expression 2 = expression 3 and, by transitivity, expression 1 = expression 3 So you need to solve two of the above three.