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Mathematics
Maia Travis
21 December, 19:49
What are the solutions? 16x^2+9=0
+4
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Jolie Monroe
21 December, 21:49
0
Answer: + 3/4 i and - 3/4 i
Step-by-step explanation:
16x^2 + 9 = 0
subtract 9 from bothside
16x^2 + 9 - 9 = 0 - 9
16x^2 = - 9
Divide bothside by 16
16x^2 / 16 = - 9/16
x^2 = - 9/16
take the square root of bothside
x = √ - 9/16
x = √ 9/16 * √-1
x = ± 3 / 4 i
Note : √ - 1 = i
Therefore; x = 3i/4 and - 3i/4 i
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Tony Horton
21 December, 21:52
0
Step-by-step explanation:
x1
= - 0 - √ 02 - 4*16*9
2*16
= 0 - 24 * √ 1 i
32
= - 0.75i
x2
= - 0 + √ 02 - 4*16*9
2*16
= 0 + 24 * √ 1 i
32
= 0.75i
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