Question

*Which of the following is not a quadratic equation?*

1️⃣ 5x² - 8x = -3(7 - 2x)
2️⃣ (x - 1)² + (x + 2)² + 3(x + 1)
3️⃣ (3x - 1)² = 5(x + 8)
4️⃣ (x - 4)(3x + 1) = (3x - 1)(x +2)
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Answer 1

Answer:

option a is your answers hope it helps you

Answer 2

Answer:

option 4

Step-by-step explanation:

it will open up to be something like this

$3x^{2} - 12x + x - 4 = 3x^{2} - x + 6x - 2$

the $3x^{2}$ on both sides will cancel out and result in a linear equation...

so the answer is 4...hope this helps