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HACTEHA [7]
2 years ago
7

Find the solutions of the quadratic equation –9x2 + 49 = 0.

Mathematics
1 answer:
stich3 [128]2 years ago
7 0

Answer:

x=49/18

Step-by-step explanation:

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Find a quadratic expression with integer coefficients whose roots are <img src="https://tex.z-dn.net/?f=5%2F2%2B%203i" id="TexFo
prohojiy [21]

Answer:

4x² -20x  +61

Step-by-step explanation:

the quadratic equation can be written as (x-root1)(x-root2)

(x-(5/2) -3i) (x-(5/2)+3i), distribute

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x² -(5/2)x -(5/2)x + 25/4 +9, combine like terms and rewrite 9 as 36/4

x² -(10/2)x  +25/4 + 36/4, combine like terms and simplify

x² -5x  +61/4 is the quadratic expression yet it does not have integer coefficients so multiply by 4 to have all coefficients integers

4x² -20x  +61

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3 years ago
What is the highest 7th grade math class you can take?
NISA [10]

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honors

Step-by-step explanation:

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3 years ago
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