bri9263
01.01.2020 •
Mathematics
Match the missing term with the perfect square trinomial 9x^2+? +25
49
6x
36
30x
Solved
Show answers
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Ответ:
9x^2+t+25=a^2*x^2+2abx+b^2 so
a^2=9 so a=3
b^2=25 so b=5 then
t=2ab using a and b from above
t=2*3*5=30
So the missing term is 30x
Ответ:
24
Step-by-step explanation:
5x24=120
120+6=126