It’s D bc Dt= 15x3 and it’s not that hard to solve
To complete a square for ax²+bx+c, you first make a=1.
in this case, a is already 1
move c to the right side: x²+14x=-47
next, add (1/2 of b)² to both sides, in this case, b=14, half of 14 is 7, so x²+14x+ 7²=-47+7²
the left side is now a perfect square: (x+7)²=2
x+7=√2 or x+7=-√2
x=√2-7, or x=-2-√7
8/9 * 1/4 = 8/36 division of fractions is equal to the multiplication of the reciprocal
Answer:
any value of a makes the equation true.
Step-by-step explanation:
