2 years ago

Factor the trinomial: -2x²-16x-24

Mathematics

1 answer:

Liula [17]2 years ago

8 0

$-2x^2-16x-24

$
 $-2x^2-12x-4x-24$
$-2x(x+6)-4(x+6)$
$(-2x-4)(x+6)$
-2(x+2)(x+6)

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Complete diagram fill in squares

mojhsa [17]

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Explanation: Just replace the x with the inputs and then solve.

6 0

2 years ago

Read 2 more answers

Solve the system using combination method to get a solution (x,y) 4x+7y=10 -4x-6y=28

PIT_PIT [208]

$\left \{ {{4x+7y=10} \atop {-4x-6y=28}} \right. \\\\add\ those\ two\ equations\\\\
y=38\\\\
4x+7y=10\ \ \ | subtract\ 7y\\\\
4x=10-7x\ \ \ \ | divide\ by\ 4\\\\
x=\frac{10-7x}{4}=\frac{10-7*38}{4}=\frac{10-266}{4}=\frac{-256}{4}=-64\\\\
solution:\\ \left \{ {{y=38} \atop {x=-64}} \right.$