# How do I find t in 2x^2−4x=t, math homework help

*label*English

*timer*Asked: Dec 28th, 2016

*account_balance_wallet*$5

**Question description**

2x^2 − 4x = t

In the equation above, *t* is a constant. If the equation has no real solutions, which of the following could be the value of *t* ?

a) -3

b) -1

c) 1

d) 3

I already know the correct answer to the question is A, but I don't have any idea how to find that answer. Can you explain the math I would use to arrive at that answer? This question is from SAT 6 from the College Board, section 3 question 13.

## Tutor Answer

Attached. Let me know if you have any questions.

2x^2 − 4x = t

In the equation above, t is a constant. If the equation has no real solutions, which of the following could be the

value of t ?

a) -3

b) -1

c) 1

d) 3

We know that a quadratic equation in the standard form 𝑎𝑥 2 + 𝑏𝑥 + 𝑐 = 0, will not have any real

solutions if the discrimi...

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