Cho biểu thức : A=(√x+1)/(√x-2) +(2√x)/(√x+2 )+(2+5√x)/(4-x) a. Rút gọn A
b. Tính giá trị của A khi x=2
c. Tính giá trị của A khi X-5√x+6=0

Select the quadratic that has root x = 8 and x = -5

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.