Answer:
Here is a more clearer version of the same question ;
29 1.2. Constructing Direct Proofs 1. Let a, b, and c be real numbers with a 0. The solutions of the quadratic equation ax 2 + bx + c = 0 are given by the quadratic formula, which states that the solutions are xi and x2. where and x2 2a 2a (a) Prove that the sum of the two solutions of the quadratic equation ax2 + bx + c = 0 is equal to -b/a . (b) Prove that the product of the two solutions of the quadratic equation ax2 + bx + c = 0 is equal to c/a.
The proving of both a) and b) has been done
Step-by-step explanation:
The step by step explanation has been given in the attachment below.
Answer:
4
Step-by-step explanation:
Need to know #, and solve :
# is the same as
#you need the same denominator to be able to add or subtract fractions
# is the same as
# is the same as a*d = b*c
6 ( 2*s - 4) = 3 ( s+4)
# distribute multiplication over addition and subtraction
12s-24 = 3s+12
#isolate like terms
12s-3s = 12+24
#combine like terms
9s = 36
#divide both sides by 9
s= 4
Answer:
KL = 7.8
Step-by-step explanation:
KH = HL
KH + HL = KL
3.9 + 3.9 = 7.8
Answer:
t=8
Step-by-step explanation: