Question

What is the value of the expression below when x=10x=10 and y=4y=4? 8x-7y 8x−7y

Answer 1

Answer:

X=10x =10

means here value of X is 1

y = 4y = 4

means here value of y is also 1

now substitute the values of X and y in the equation

8×1-7×1×(8×1-7×1)

8-7(8-7)

64-49

15