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balandron [24]
3 years ago
9

2x^2 + 4x +7 quadratic formula

Mathematics
1 answer:
marissa [1.9K]3 years ago
7 0

Answer:

Step-by-step explanation:

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Solve x^2=2x+3 by factoring
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The solution is x = 1 and x = -3

<em><u>Solution:</u></em>

Given that we have to solve the given equation by factoring

Given equation is:

x^2=2x + 3\\\\x^2 - 2x - 3 = 0

\text{Consider the form } x^2+bx+c

Find a pair of integers whose product is c and and whose sum is b

\text{Compare } x^2-2x-3 = 0 \text{ with } x^2+bx +c\\\\\text{We get } b = -2 \text{ and } c = -3

Now find, a pair of integers whose sum is -2 and product is -3

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When multiply -1 and 3 we get -3

Thus the pair of integers are -1 and 3

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(x-1)(x+3) = 0

The Zero Product Property states that if ab = 0, then either a = 0 or b = 0, or both a and b are 0

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Math homework please help
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the first on is -42

the second one is -80

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