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Hello everyone, I need help with one more question and that's using the quadractic formula to solve 16x2 + 96x + 128 = 0 and -4x2 + 28x – 48 = 0. Could someone tell me the answer to both so I can hurry and submit the assignment, I've been really waiting to see what I get on this.

#### pickslides

MHF Helper
But if we solve these equations for your assignment it wont be your work.

I suggest studying this, for $$\displaystyle ax^2+bx+c=0$$ then $$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$

It will give you the answer.

• Chris L T521

But if we solve these equations for your assignment it wont be your work.

I suggest studying this, for $$\displaystyle ax^2+bx+c=0$$ then $$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$

It will give you the answer.
I know, I've been studying this formula and I have been getting all kinds of things, that's why I posted the question.

#### skeeter

MHF Helper
Hello everyone, I need help with one more question and that's using the quadractic formula to solve 16x2 + 96x + 128 = 0 and -4x2 + 28x – 48 = 0. Could someone tell me the answer to both so I can hurry and submit the assignment, I've been really waiting to see what I get on this.
$$\displaystyle 16x^2 + 96x + 128 = 0$$

divide every term by 16 ....

$$\displaystyle x^2 + 6x + 8 = 0$$

this is a factorable quadratic ... do it.

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$$\displaystyle -4x^2 + 28x - 48 = 0$$

start by dividing every term by -4 ... same song, second verse.

#### spruancejr

Break down the first term:
$$\displaystyle 16x^2$$ compared to $$\displaystyle ax^2$$

Do you see to what the "a" term may be equal?

#### mr fantastic

MHF Hall of Fame
Hello everyone, I need help with one more question and that's using the quadractic formula to solve 16x2 + 96x + 128 = 0 and -4x2 + 28x – 48 = 0. Could someone tell me the answer to both so I can hurry and submit the assignment, I've been really waiting to see what I get on this.
Assignments usually count towards a student's final grade. MHF policy is to not knowingly help with such questions - it's meant to be the work of the student, not the work ofothers.

Thread closed (you can discuss this with me via pm if you want).

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