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8th math 5 question quiz, please help, 10 points!!!?
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<blockquote data-quote="Alex" data-source="post: 2200769" data-attributes="member: 207597"><p>I'll be sure to vote the best answer.</p><p>26.) Simplify:</p><p>(x3 + 4x2 - 2x + 5) - (3x3 - 3x2 + x - 2) =</p><p>Ax3 + 3x2 + 3x + 1</p><p>Bx3 + 3x2 + 3x + 1</p><p>C-2x3 + 7x2 - 3x + 7</p><p>D2x3 - 8x2 - 8x + 11</p><p></p><p>27.) Solve for x:</p><p>2x2 + 3x - 1 = 0</p><p>A(-5 ± ?13) / 2</p><p>B(-7 ± ?13) / 4</p><p>C(-3 ± ?17) / 2</p><p>D(-3 ± ?17) / 4</p><p></p><p>28.) What's missing in this factorization?</p><p>x2 + 7x + 10</p><p></p><p>(x + 2)(____)</p><p>Ax + 5</p><p>B5x + 6</p><p>Cx + 1</p><p>D2x - 5</p><p></p><p>29.) Solve for y.</p><p>3(y - 4) = 4y + 2 - y</p><p>A 0</p><p>B1</p><p>C-4</p><p>Dno solution</p><p></p><p>30.) What is the y-intercept of 3x - 2y = 0?</p><p>A 0</p><p>B-1/2</p><p>C1</p><p>D1/3</p></blockquote><p></p>
[QUOTE="Alex, post: 2200769, member: 207597"] I'll be sure to vote the best answer. 26.) Simplify: (x3 + 4x2 - 2x + 5) - (3x3 - 3x2 + x - 2) = Ax3 + 3x2 + 3x + 1 Bx3 + 3x2 + 3x + 1 C-2x3 + 7x2 - 3x + 7 D2x3 - 8x2 - 8x + 11 27.) Solve for x: 2x2 + 3x - 1 = 0 A(-5 ± ?13) / 2 B(-7 ± ?13) / 4 C(-3 ± ?17) / 2 D(-3 ± ?17) / 4 28.) What's missing in this factorization? x2 + 7x + 10 (x + 2)(____) Ax + 5 B5x + 6 Cx + 1 D2x - 5 29.) Solve for y. 3(y - 4) = 4y + 2 - y A 0 B1 C-4 Dno solution 30.) What is the y-intercept of 3x - 2y = 0? A 0 B-1/2 C1 D1/3 [/QUOTE]
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