Answer:
x=−1/2+1/2√10 or -1/2+-1/2√10
Step-by-step explanation:
4x2+4x−2=7
Step 1: Subtract 7 from both sides.
4x2+4x−2−7=7−7
4x2+4x−9=0
For this equation: a=4, b=4, c=-9
4x2+4x+−9=0
Step 2: Use quadratic formula with a=4, b=4, c=-9.
x=
−b±√b2−4ac
2a
x=
−(4)±√(4)2−4(4)(−9)
2(4)
x=
−4±√160
8
x=
−1/2
+
1/2
The answer is: False
This does not mean that AD will be congruent to BC because AD and BC has the same specific angle and volume.
4374. You can draw 54 lines horizontally and 81 vertically, and count the intersections of the lines. Is this what your talking about? Not very efficient, I might add.
The answer for this question is -7
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