Q. Evaluate the expression for the given values.8x2+7y;x=4,y=9
Identify Expression and Values: Step Title: Identify the Expression and Substitution ValuesConcise Step Description: Identify the algebraic expression and the values to be substituted for the variables x and y.Step Calculation: The expression is 8x2+7y, and the values to be substituted are x=4 and y=9.
Substitute Values: Step Title: Substitute the Values for x and y Concise Step Description: Substitute x=4 and y=9 into the expression 8x2+7y. Step Calculation: 8(4)2+7(9)
Calculate Power of x: Step Title: Calculate the Power of xConcise Step Description: Calculate the square of x, which is 42.Step Calculation: 42=16
Multiply with Coefficient: Step Title: Multiply the Result with the Coefficient of xConcise Step Description: Multiply the result from the previous step with the coefficient of x, which is 8.Step Calculation: 8×16=128
Multiply Coefficient of y: Step Title: Multiply the Coefficient of y by yConcise Step Description: Multiply the coefficient of y, which is 7, by the value of y, which is 9.Step Calculation: 7×9=63
Add Results: Step Title: Add the ResultsConcise Step Description: Add the results from the multiplication of the coefficient of x by x2 and the coefficient of y by y.Step Calculation: 128+63=191