Am I correct???? Will give brainliest

Mathematics

2 answers:

scoray [572]4 years ago

7 0

You’re wrong, the first should be combine like terms, the second should be subtraction property of equality and the last is given

SOVA2 [1]4 years ago

4 0

yes, you are correct when you combine the -5x and 6x you get x so it ends up being 12+x=4 so when you do 4-12 you get -8. Your answer is -8 so you are correct

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6x^2-9x +2=0 solve the quadratic equation using the quadratic formula

balu736 [363]

ANSWER:

The roots of $6 x^{2}-9 x+2=0$ are $\frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}$

SOLUTION:

Given, quadratic equation is $6 x^{2}-9 x+2=0$ --- eqn (1)

We need to find the roots of given quadratic equation using quadratic formula.

Quadratic formula for general quadratic equation $a x^{2}+b x+c=0$ is $X=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Here, for eqn (1) a = 6, b= -9 and c = 2

$X=\frac{-(-9) \pm \sqrt{(-9)^{2}-4 \times6 \times 2}}{2 x 2}$

$X=\frac{9 \pm \sqrt{81-48}}{4}$

$\begin{array}{l}{X=\frac{9 \pm \sqrt{33}}{4}} \\ {X=\frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}}\end{array}$

Hence the roots of $6 x^{2}-9 x+2=0$ are $\frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}$

6 0

3 years ago

What is the additive inverse of -7x2 + y? 7x2 + y 7x2 − y 7x − y -7x2 − y

Genrish500 [490]

Additive inverse is the number that when added to a number yields 0.

This is the negation of that number or expression.

The additive inverse of $7x^2 + y$ is $-(7x^2 + y)$

Distribute the negative sign across all the terms in the parentheses. This is the same thing as multiplying each term by -1.

$-(7x^2 + y)$
$(-1 * 7x^2) + (-1 * y)$
$-7x^2 - y$