It helps to memorize the quadratic formula as a song. Try in the tune of pop goes the weasel. The quadratic formula is -b. Plus or minus the square root. Of b squared minus 4ac. All over 2a! Just plug in the numbers and you should get an answer. Let me know if you need more help :)
You haven't shared what you're supposed to do here. Instructions?
If you want to find the roots of <span>0 = x^2+5x - 6, identify the coefficients of the x terms as follows: a=1, b=5 and c= -6.
-5 plus or minus sqrt( 25-4(1)(-6) ) Then x = ------------------------------------------------- 2 -5 plus or minus sqrt(49) = ------------------------------------ 2
Thus, there will be two unequal, real answers. Please finish the math and identify these answers.</span>
Step-by-step explanation: K subtracted by 8.4 is greater than 21, so we start the equality off with our unknown variable K. Because K-8.4 is greater than 21, our symbol faces the direction of K-8.4 (symbol always faces the direction of the greater values).
