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Ivanshal [37]
3 years ago
14

(x+7)(x-3)(2x+5) someone simplify this

Mathematics
1 answer:
vfiekz [6]3 years ago
3 0

Answer:

4x-105

Step-by-step explanation:

The answer is 4x-105 because you do cross multiply with (x+7)(x-3) and that answer is (2x-21) then you multiply (4x-21)(2x+5) and the overall answer is 4x-105.

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Step-by-step explanation:

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Equation álgebra<br> 3x^2 = 12<br> a. +3<br> b. +2<br> C. +3.5<br> d. +1.5
Tom [10]

Answer:

x=-2,2

Step-by-step explanation:

Since this is a quadratic equation, -2 or 2 could be the possible answer

Steps

$3x^2=12$

$\mathrm{Divide\:both\:sides\:by\:}3$

$\frac{3x^2}{3}=\frac{12}{3}$

$\mathrm{Simplify}$

$x^2=4$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$x=\sqrt{4},\:x=-\sqrt{4}$

Show Steps

$\sqrt{4}=2$

Show Steps

$-\sqrt{4}=-2$

$x=2,\:x=-2$

3 0
4 years ago
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