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oksian1 [2.3K]
3 years ago
12

What are the solutions of the quadratic equation p^2+3p-28=40

Mathematics
2 answers:
vivado [14]3 years ago
3 0

Answer:

the answer is  =-3±\sqrt{281}/2

Step-by-step explanation:

fgiga [73]3 years ago
3 0

Answer:

             \bold{p_1\approx6.88\ ,\qquad p_2\approx-9.88}

Step-by-step explanation:

p^2+3p-28=40\\\\p^2+3p-68=0\\\\a=1\,,\ b=3\,,\ c=-68\\\\\\p=\dfrac{-3\pm\sqrt{3^2-4\cdot1\cdot(-68)}}{2\cdot1}=\dfrac{-3\pm\sqrt{281}}{2}\\\\p_1\approx6.88\ ,\qquad p_2\approx-9.88

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