Solve the equation.2x1/2 - 9x1/4 - 18 = 0
A. {-6, -3}
B. 
C. {1296}
D. 
Answer: C
Mathematics
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Find the product.4ax4(9ax6 + 6x2)
A. 36a2x10 + 6x2 B. 36a2x10 + 24ax6 C. 36ax + 24x D. 36a2x10 + 24x6
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Use half-angle identities to find the exact value of the expression.tan 75°
A. -2 - 
B. 2 + 
C. -2 + 
D. 2 - 
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Find the exact value of the expression.sin 190° cos 70° - cos 190° sin 70°
A. - 
B. - 
C. 
D. 
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Does the system have one solution, no solution, or an infinite number of solutions? 2x - y = 5-4x + 2y = -18
A. Infinite number B. No Solution C. One
Mathematics