solve the equation 2x2+6x-20=0
by cross multiplication method
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Answered by
1
Answer:
8x²-20=0
8x²=20
x²=20/8
x²=√20/8
Answered by
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Answer:
YOUR ANSWER <<<
2x² + 6x - 20 = 0
2x² + 10x - 4x - 20 = 0
2x ( x + 5) - 4 ( x + 5) = 0
( 2x - 4 ) ( x+ 5 ) = 0
2x - 4 = 0 ; x + 5 = 0
2x = 4 ; x = -5
x = 2 ; x = -5
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