Answer:
2, -6
Step-by-step explanation:
x^2 + 4x - 12
A = 1
B = 4
C = -12
i used the "X" method to solve for the solutions. i think it's easier than using the quadratic formula but it doesn't always work
for the "X" method you have to multiply your A value and your C value together so 1 x (-12) = -12. that is going to be the top part of the X
the bottom part of the x will be your B value which is 4
we have to find multiples of -12 that will also add to 4
so -2 and 6 multiply to -12 but also add to 4 so we know these numbers will work
i added added two drawings to show how i found the solutions using the "X" method and the quadratic formula
Pemdas
parenthaseese
exponents
muliplication or division
addition r subtraction
so first is multiplication since non partnehatases and exonents
3 times 6=18
now we have
3-18+2
add
3-18=-15
now we have
-15+2=-13
answer is -17 because of order of operations (PEMDAS)
Answer:
<em>6x+72</em>
Step-by-step explanation:
Multiply 6 times x to get 6x. Then multiply 6 by 12 to get 72. Then put an addition sign to make another simplified equation. 6(x+12) is equal to 6x+72.
it took Kenneth 32.96 seconds to finish the race this week.
Answer:
A = 10W - W²
Step-by-step explanation:
Perimeter of a rectangle = 2(L+W)
Area of a rectangle =LW
L is the length
W is the width
Given
Perimeter = 20m
20 = 2 (L+W)
10 = L+W
L = 10 - W ....2
Substitute equation 2 into the formula for calculating the area
Recall that A = LW
A = (10-W)W
A = 10W - W²
Hence the area of the rectangle as a function of the length of ones its side is expressed as A = 10W - W²
