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Lady bird [3.3K]
3 years ago
15

Factor 2x^3+3x^2-23x-12, given that x+4 is a factor

Mathematics
2 answers:
Paraphin [41]3 years ago
6 0
Hello,
2x^3+3x^2-23x-12\\
=2x^3+8x^2-5x^2-20x-3x-12\\
=2x^2(x+4)-5x(x+4)-3(x+4)\\
=(x+4)(2x^2-5x-3)\\
=(x+4)(2x^2-6x+x-3)\\
=(x+4)[2x(x-3)+1(x+3)]\\
=(x+4)(x-3)(2x+1)
Alex73 [517]3 years ago
5 0
<span>(2x + 1) • (x - 3) • (x + 4)</span>
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Simplify. (-7y^2+4y+9)+(6y^2-5y+9)-(2y^2-9y-2)
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By SSS congruency criteria ΔABC ≅ ΔDEF

<h3>What is congruency?</h3>

Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

The given vertices of the triangles are;

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The lengths of the sides of ΔABC are

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