The first step is to distribute the 25x to the terms inside the parentheses:
25x(3/5x + 4) = (25x)(3/5x) + (25x)(4)
Simplifying the first term:
(25x)(3/5x) = (25*3/5)(x*x) = 15x^2
Simplifying the second term:
(25x)(4) = 100x
Putting it all together:
25x(3/5x + 4) = 15x^2 + 100x
Simplify: 25x(3/5
x + 4)
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