Question

solve by factorizaton method: y2+3y-18=0​

Answer 1

Step-by-step explanation:

${\huge{\mathcal{\pink{ANSWER}}}}$

${y}^{2} + 3y - 18 = 0$

${y}^{2} + 6y - 3y - 18 = 0$

$y(y + 6) - 3(y + 6) = 0$

$(y + 6)(y - 3) = 0$

$y + 6 = 0 \\ \\ y = - 6$

$y - 3 = 0 \\ \\ y = 3.$

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