Question

In the equation 3x²+7-4=0 which is the quadratic term

Answer 1

Answer:

the quadratic term of the equation 3x square +7-4=0 is 3x square

Step-by-step explanation:

• 3x square :- quadratic term
• 7:-linear term
• -3:-constant term

Answer 2

Answer:

Notice that if you invert the sign of the term of odd degree then the sum of the coefficients is zero. That is: 3−7+4=0

We can deduce that x=−1 is a root and (x+1) a factor:

0=3x2+7x+4=(x+1)(3x+4)

So the other root is x=−43

AC Method

Look for a pair of factors of AC=3⋅4=12 with sum B=7.

The pair 3,4 works.

Use that pair to split the middle term and factor by grouping:

0=3x2+7x+4

=3x2+3x+4x+4

=(3x2+3x)+(4x+4)

=3x(x+1)+4(x+1)

=(3x+4)(x+1)

Hence roots x=−43 and x=−1