Which expression is equivalent to 2401 in exponential form? a) 47 b) 74 c) 7 × 4 d) 7 × 7 × 7 × 7

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Step-by-step explanation:

Exponential form simply means a numeric form involving exponents and it is a way of expressing repeated multiplications of the same number by writing the number as a base with the number of repeats written to the upper right which is called the exponent.

The expression which is equivalent to 2401 in exponential form 7 x 7 x 7 x 7

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!