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Substituting and evaluating algebraic expressions questions and answers

what is the value of: #frac{2d(a^2-cb^2)}{4d+3a}# if a=5, b=3, c=1 and d=#1/4# ?

A.#1/8#
B.#1/2#
C.#7/32#
D.#16/17#

(2m 48s)

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