3 years ago

Adding five groups of -4 is the same as ____ five groups of -4What is the blank

Mathematics

1 answer:

Cloud [144]3 years ago

7 0

Answer = multiplying

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greatest common factor: x^3y^2

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Find the intersection point between the lines of equations: 2x-y+6=0 and 2x+3y-6=0

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Step-by-step explanation:

The two equation will intersect each other at the point which will be the solution of the given two equations , and the given equations are ,

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PLEASE HELP ME NOW URGENT

timama [110]

ANSWER

$y = 3 \pm \sqrt{21}$

EXPLANATION

The quadratic equation is:

${y}^{2} - 6y - 12 = 0$

Group variable terms:

${y}^{2} - 6y = 12$

Add the square of half, the coefficient of y to both sides.

${y}^{2} - 6y + ( - 3) ^{2} = 12 + ( - 3) ^{2}$

${y}^{2} - 6y + 9= 12 + 9$

The LHS us now a perfect square trinomial:

${(y - 3)}^{2}= 21$

Take square root:

$y - 3 = \pm \sqrt{21}$

$y = 3 \pm \sqrt{21}$

The first choice is correct.

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Adding five groups of -4 is the same as ____ five groups of -4What is the blank​

Adding five groups of -4 is the same as ____ five groups of -4What is the blank