Math, asked by seeemarai, 8 months ago

Solve:
1. () (x - 3)(x + 7) = 0​

Answers

Answered by ToxicEgo
1

Answer:

(x-3) (x+7) =0

→x(x+7) -3(x+7) =0

→x²+7x-3x-21=0

→x²+4x-21=0

→x²+7x-3x-21=0

→x(x+7) -3(x+7) =0

→(x-3) (x+7) =0

→x-3=0 or x+7=0

→x=3 or x=-7

Answered by Mysterioushine
1

( x - 3)( x + 7 ) = 0

=> x^2 + 7x - 3x - 21 = 0

=> x ( x + 7 ) -3 ( x + 7 )

=> ( x + 7 )( x - 3) = 0

=> x = -7 (or) x = 3

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