Question

solve the question mark with pencil please step by step ​

Answer 1

Answer:

FOLLOW THE STEPS BELOW:

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Step-by-step explanation

$3n^{2}$+10n+7

SUM=10

PRO=3*7=21

$3n^{2}$+3n+7n+7=0

3n(n+1)+7(n+1)=0

(3n+7)(n+1)=0

THE FACTORS ARE:(3n+7)(n+1)

$4r^{2}$-7r+3=0

SUM=-7

PROD=4*3=12

$4r^{2}$-4r-3r+3=0

4r(r-1)-3(r-1)=0

(4r-3)(r-1)=0

THE FACTORS ARE:(4r-3)(r-1)

$6t^{2}$+19t-20=0

SUM=19

PROD=-120

$6t^{2}$+24t-5t-20=0

6t(t+4)-5(t+4)=0

(6t-5)(t+4)=0

THE FACTORS ARE:(6t-5)(t+4)

THANK YOU,

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