SAT Math Videos on Exponents (Part - 2)

Problem 1 :

If x2 = y3, for what value of z does x3z = y9?

A)  -1

B)  0

C)  1

D)  2

Solution :

Problem 2 :

If 2x + 3 - 2= k(2x), what is the value of k?

A)  3

B)  5

C)  7

D)  8

Solution :

Problem 3 :

If xac  xbc = x30, x > 1 and a + b = 5, what is the value of c? 

A)  3

B)  5

C)  6

D)  10

Solution :

Problem 4 :

If n3 = x and n4 = 20x, where n > 0, what the value of x?

Solution :

Problem 5 :

If x8y7 = 333 and x7y6 = 3, what is the value of xy?

Solution :

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