xsquare -19x+84=0 solve quadratic exponents for SSC trick
Answers
Answered by
0
Answer:
7,12
Step-by-step explanation:
x^2-19x+84=0
x^2-12x-7x+84=0
x(x-12)-7(x-12)=0
(x-7) (x-12) = 0
then
x = 7 and x = 12
Answered by
0
Answer:
7 and 12
Step-by-step explanation:
factor 84 in two no such that their sum is 19
84= 12× 7
( x - 12 ) ( x - 7 ) =0
so x=12 and x = 7
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