Question

If 28x= 64²–36², then x=?​

Answer 1

Answer:

x = 100

Step-by-step explanation:

28x = 64²–36²

28x = 4096 - 1296

28x = 2800

x = 2800/28

x = 100

Answer 2

Answer:

Step-by-step explanation:

a²-b²= (a+b)(a-b)

LHS=

64²–36²= (64+36)(64-36)

=(28)(100)

equate lhs with rhs

(28)(100)=28x

therefore

x=100

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