5
Given a value of x, find the value for -3x + 2
7h - 2 - 51 is an expression NOT an equation. An expression cannot be solved for the value of a variable.
2x^2+3xy-4y2(4)+3(2)(-4)-(4)(-4)8-24+16=0
It is an equation ... Anything with an equals is an equation 2+b=6 Anything without an equals is an expression 2+a
5
Given a value of x, find the value for -3x + 2
7h - 2 - 51 is an expression NOT an equation. An expression cannot be solved for the value of a variable.
try this one 25 + n
If the expression is (x - y)2, the solution is (7 - -2)2 = (7+2)2 = 92 = 81. If the expression is x - y2, the solution is 7 - (-2)2 = 7 - 4 = 3.
76-2*6=444
5(5) is 25. 3(-2) is (-6). The expression becomes 25 - (-6). When subtracting a negative number, you actually "add the opposite," so the expression is now 25 + 6 (positive 6 is "the opposite" of -6); the value is 31.
To find the value of (n-2)^2 + n-1 when n=4, we simply substitute 4 for n in the expression: (n-2)^2 + n-1 When we do this, the expression becomes: (4-2)^2 + 4-1 Now we need to simplify the expression within the parentheses first. The expression within the parentheses is (4-2)^2, which means we need to subtract 2 from 4 and then square the result. So, we get: 2^2 Which equals 4. Now we can substitute this value back into the original expression to get: 4 + 4-1 Next, we simplify the expression 4-1, which equals 3. So, the expression becomes: 4 + 3 And we can simplify that further to get: 7 So, when n=4, the value of (n-2)^2 + n-1 is 7
2 squared is 4 3 cubed is 27 27 plus 4 is 31
x = 2 is an algebraic equality (Because there is an 'equals'(=) sign) x - 2 is an algebraic expression ( Because there is NO equals sign).
If you mean: x^2+15-3x then its value is 19 when x equals 4
2(2)2 + 3(2)(- 4) - 4(- 4)2 8 - 24 - 64 = - 80 ======