Expressions with Variable

State Quadratic expression in two variables and give Example

Assertion : The expression 3x^(4)-4x^(3//2)+x^(2)=2 is not a polynomial because the term -4x^(3//2) contains a rational power of x . Reason : The highest exponent in various terms of an algebraic expression in one variable is called its degree .

Make up as many expressions with numbers (no variables) as you can from three numbers 5,7 and 8. Every number should be used not more than once.Use only addition,subtraction and multiplication.

Make up as many expressions with numbers (no variables) as you can from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and in multiplication. (Hint: Three possible expressions are 5 + (8 - 7), 5 - (8 - 7), (5 x 8) + 7, make the other expressions.)

Express the following properties with variables x, y and z. (i) Commutative property of addition (ii) Commutative property of multiplication (iii) Associative property of addition (iv) Associative property of multiplication (v) Distributive property of multiplication over addition

State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable. (t - 7) gt 5