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4 years ago

Simplify (7x^2-4x+2)-(x^2 +4x-6)

Mathematics

2 answers:

EastWind [94]4 years ago

8 0

$6x ^{2} - 8x + 8$

tamaranim1 [39]4 years ago

7 0

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

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Angles α and β are angles in standard position such that: α terminates in Quadrant II and sinα = 3/5, β terminates in Quadrant I

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We are given

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Must show work-Solve the conjunction and describe the solution set. −5 < 2x + 3 < 9

Tema [17]

The solution set of the inequality −5 < 2x + 3 < 9 is (-4,3)

<h3>How to solve the inequality?</h3>

The compound inequality is given as:

−5 < 2x + 3 < 9

Expand the inequality

−5 < 2x + 3 or 2x + 3 < 9

Rewrite as:

2x + 3 > -5 or 2x + 3 < 9

Subtract 3 from both sides

2x > -8 or 2x < 6

Divide both sides by 2

x > -4 or x < 3

Rewrite as:

(-4,3)

Hence, the solution set of the inequality is (-4,3)