Answer:Although the Quadratic Formula always works as a strategy to solve quadratic equations, for many problems it is not the most efficient method. Sometimes it is faster to factor or complete the square or even just "out-think" the problem. For each equation below, choose the method you think is most efficient to solve the equation and explain your reason. Note that you do not actually need to solve the equation. a. x2+7x−8=0x
2
+7x−8=0, b. (x+2)2=49(x+2)
2
=49, c. 5x2−x−7=05x
2
−x−7=0, d. x2+4x=−1x
2
+4x=−1.
Answer:
A
Step-by-step explanation:
went up a positive 4 points:)
Answer:
480
Step-by-step explanation:
1200 times 0.4 equals 480
Answer:
7 cm
Step-by-step explanation:
First you need to check if the equation line was 10, then use it!
