a) simplify (x2-4x-12)(2x+3)2 / 2x2-9x-18 b) hence, show that [(x2-4x-12)(2x+3)2/ 2x2-9x-18] - 7x is always positive for any values of x, except x = -3/2 or 6. My...

a) simplify (x2-4x-12)(2x+3)2 / 2x2-9x-18 b) hence, show that [(x2-4x-12)(2x+3)2/ 2x2-9x-18] - 7x is always positive for any values of x, except x = -3/2 or 6. My...

a.) Let x = the number of years after 1990 and let y = average cost of a new car. What ordered pairs can be written to express this information? b) Write the equation of the...

What is the value of the discriminant for 5x^2 + 7x = 6 ? How many different real number solutions does the equation have? Thanks SO MUCH for answering! :)

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{y=x^2+2x-7 {x-y=-5

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A chef is using a mixture of two brands of Italian dressing. The first brand contains 5% vinegar, and the second brand contains 15% vinegar. The chef wants to make 390 milliliters of a dressing that...

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Can someone help me please?

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The question is here in the link: http://postimg.org/image/6uq9f3opn/ The last step I could get was: Let K1 and K2 Be constant Z = 1.25(K1)(X ) + 0.64(K2)(Y2) ....

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I've been trying to do this pattern for 4 days now. I've even went through and plugged in every number separately and I still can't get the answer. Please help!

You have a coupon for $200 off the price of a computer.When you arrive, you find that the computers are on sale for 20% off. Let x represent the original price of the computer, a. Use function...