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2 years ago

What methods do you know that can be used to solve a quadratic equation?

2 answers:

8 0

Answer: If the quadratic equation has real, rational solutions, the quickest way to solve it is often to factorise into the form (px + q)(mx + n), where m, n, p and q are integers. This is especially true where the coefficient of x2 is 1.

Example 1 - Solve x2+7x+12=0

Step-by-step explanation:

that's the only one I remember

stepan [7]2 years ago

7 0

Answer:

factoring, using the square roots, completing the square and the quadratic formula.

Step-by-step explanation:

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Which of the following would most likely increase the greenhouse effect?

kakasveta [241]

B using more coal to make electricity

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3 years ago

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3 years ago

Solve for x. -5 + 5x = -(1 - 6x)

choli [55]

- 5 + 5x = - 1 + 6x

- 5 + 5 + 5x = - 1 + 5 + 6x

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1 year ago

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Which of the following shows the factors of 5x2 + 17x + 6? A. (5x + 1)(x + 6) B. (5x + 2)(x + 3) C. (5x + 3)(x + 2) D. (5x + 6)(

zysi [14]

Answer:

B. $(x+3)(5x+2)$

Step-by-step explanation:

The given quadratic trinomial is;

$5x^2+17x+6$

Comparing this to $ax^2+bx+c$ , we have a=5,b=17,c=6.

$ac=5\times6=30$

Two factors of 30 that add up to 17 is 15 and 2.

We split the middle term to obtain;

$5x^2+15x+2x+6$

We factor by grouping;

$5x(x+3)+2(x+3)$

Factor further

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The correct answer is B.

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Fofino [41]

There is no illustration, so it is impossible to answer this question. I apologize.

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