what is the solution of the quadratic equation (4y – 3)2 = 72?

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25-06-2018
Mathematics

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what is the solution of the quadratic equation (4y – 3)2 = 72?

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ALin03 ALin03 · Answer 1 · 2018-06-25T01:58:48+02:00

ALin03 ALin03

25-06-2018

Supposing the two is supposed to be a squared:
Multiply (FOIL) it out: (4y-3)(4y-3)
16y²-12y-12y+9 = 16y²-24y+9=72
Subtract 72 from both sides: 16y²-24y-63=0
Use quadratic formula (let me know if you want me to type it out), or just use your calculator: x should turn out to be 2.871 or -1.371

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