Math, asked by BrainlyPopularStar01, 5 hours ago

please help me with this question by explaining step by step

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Answers

Answered by violaalva

2

Answer:

(1) 7

Step-by-step explanation:

x+3 = 0

x = -3

substitute x in the equation

3x² + kx - 6 = 0

3(-3)² -3k - 6 = 0

3(9) - 3k -6 = 0

27 - 3k - 6 = 0

21 - 3k=0

3k = 21

k = 7

Answered by ITZURADITYAKING

2

Step-by-step explanation:

7 MARK AS BRAIENLIST PLEASE I WILL FOLLOW

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