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Rashid [163]
3 years ago
5

Please help! It’s urgent!

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
3 0

Answer: C

Step-by-step explanation: Hope this help :D

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Determine the type and number of solutions of −4x2 − 3x + 7 = 0.
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Answer:

Step-by-step explanation:

You have to use the discriminant for this. If the quadratic is -4x^2-3x+7, then

a = -4, b = -3, and c = 7. The formula for finding the discriminant is

D=b^2-4ac which comes from the quadratic formula, but without the square root sign. Filling in:

D=(-3)^2-4(-4)(7) which simplifies down to

D = 9 + 112 so

D = 121. This is a perfect square, so the solutions will be 2 real. Just so you know, you will NEVER have a solution like the one offered in the third choice down. If you have one imaginary root, you will ALWAYS have a second by the conjugate rule.

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