The product of two consecutive integers is 72. The equation x(x + 1) = 72 represents the situation, where x
represents the smaller integer. Which equation can be factored and solved for the smaller integer?
A. x^2 + x - 72 = 0
B. x^2+x+ 72 = 0
C. x^2 + 2x - 72 = 0
D. x^2 + 2x + 72 = 0

What is sin 7x/4 ? i need on this urgent trig

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