3 years ago

Simplify the following expression (6x2 - 8x - 3) - (3x2 - 7

Mathematics

1 answer:

ddd [48]3 years ago

8 0

18x2-8x+21 is the simplified form of your equation

You might be interested in

In the triangle above, the measure of A is 66°, and the measure of B is 68°. What is the measure of C?

valentina_108 [34]

Answer:

46°

Step-by-step explanation:

Given that :

Angle, A = 66°

Angle B = 68°

The sum of angles in a triangle is given by :

A + B + C = 180° (sum if angles una triangle)

66° + 68° + C = 180°

134° + C = 180°

C = 180° - 134°

C = 46°

Hence, angle C is 46°

6 0

4 years ago

Select the appropriate property of equality for the statement. If a = b, then a + c = b + c.

Liula [17]

A. ) Addition Property is the answer

5 0

3 years ago

19)

Elena-2011 [213]

Answer:

The correct answer is: Option D) 5

Step-by-step explanation:

Given equation is:

$3(x + 2) + x = 2x + 16$

In order to find that which values of x makes the equation true, we have to put each value of x in the equation. When both sides of equations will be equal, that value of x will be true for the equation.

Putting x = 2

$3(2 + 2) + 2 = 2(2) + 16\\3(4)+2 = 4+16\\12+2 = 20\\14 \neq 20$

Putting x = 3

$3(3 + 2) + 3 = 2(3) + 16\\3(5)+3 = 6+16\\17+3 = 22\\20 \neq 22$

Putting x=4

$3(4+2)+4 = 2(4)+16\\3(6)+4 = 8+16\\18+4 = 24\\22 \neq 24$

Putting x = 5

$3(5+2)+5 = 2(5)+16\\3(7)+5 = 10+16\\21+5 = 26\\26 = 26$

The equation is true for x = 5

Hence,

The correct answer is: Option D) 5

6 0

3 years ago

Help me with number 3 please

Harlamova29_29 [7]

The answer would be 22%

6 0

3 years ago

11/12-?=2/3 How do I get the missing fraction with out reducing?

Tasya [4]

Step-by-step explanation:

11/12-?=2/3

11/12-2/3=?

11-8/12=?

3/12

=1/4

4 0

3 years ago

Read 2 more answers