Which quadratic equation is equivalent to (x + 2)2 + 5(x + 2) – 6 = 0?

Mathematics

2 answers:

Dahasolnce [82]2 years ago

5 0

Answer:

u2 + 5u – 6 = 0 where u = (x + 2)

Darya [45]2 years ago

3 0

Quadratic is in the form
ax^2+bx+c=0

so distribute and stuff and simplify
remember
a(b+c)=ab+ac

(x+2)^2+5(x+2)-6=0
remember order of opertaions
(x+2)(x+2)+5(x+2)-6=0
x^2+4x+4+5x+10-6=0
add like terms
x^2+9x+8=0

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Katyanochek1 [597]

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Step-by-step explanation:

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Sonja [21]

Answer:

$a_1=-10$

$d=3$

Step-by-step explanation:

we know that

In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant, and this constant is called the common difference (d)

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$(1,-10),(2,-7),(3,-4),(4,-1),(5,2),(6,5)$