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Answer:
Step-by-step explanation:
no ,x*x*x*x*x=x^5
x+x+x+x+x=5x
in multiplication those who have same base we add their power.
in addition those variables which have same base(or are like term) we add them.
The two solutions for the system of equations:
y = x^2+ 5x - 3
y - x = 2
Are:
(-5, -7) and (1, -1)
<h3>How to solve the system of equations?</h3>
Here we have the following system of equations:
y = x^2+ 5x - 3
y - x = 2
We can replace the first equation into the second one to get:
(x^2+ 5x - 3) - x = 2
x^2 + 4x - 3 = 2
x^2 + 4x - 3 - 2 = 0
x^2 + 4x - 5 = 0
Using the quadratic formula, we will get the solutions:
The two solutions are:
x = (-4 - 6)/2 = -5
x = (-4 + 6)/2 = 1
To find the values of y, we can evaluate the linear equation:
when x = -5
y - (-5) = -2
y + 5 = -2
y = -2 - 5 = -7
So one solution is (-5, -7)
when x = 1
y - 1 = -2
y = -2 + 1 = -1
The other solution is (1, -1)
Learn more about systems of equations:
brainly.com/question/13729904
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I am not sure how the answer is coming up as an "m+1+ or "m<span>-1" I am a ... </span>Factor<span>: : </span>4m^2<span> -18m + 14. We can simplify this, </span>factor<span> out </span>2 2(2m^2<span> - 9m + 7) ... FOIL (</span>5m+3)(m+1) : 15m^2<span> - </span>10m<span> - 25. </span>Factor<span> out </span>5 5(3m^2<span> - 2m - </span>5<span>) </span>Factors<span> to </span>3<span>(3m - </span>5)(m<span> + 1) FOIL this to confirm it : 50m^</span>3<span> - 2m. Simplify, </span>factor<span> out 2m 2m(</span>25m^2<span> - 1)</span>
Answer:
x = 32/7, or 4 4/7 meals
Step-by-step explanation:
Write and solve an equation of ratios, as follows:
7/8 lb 4 meals
------------ -------------
1 lb x
x will be the number of meals necessary for the dog to eat 1 lb of food.
Cross-multiplying, (7/8)x = 4.
Multiplying both sides by 8/7 is an easy way to isolate x:
(8/7)(7/8)x = (8/7)(4)
or
x = 32/7, or 4 4/7 meals
