factorise 2x^2-7x-3
Answers
Answered by
1
Answer:
(x-3)(2x-1)
Step-by-step explanation:
2x^2-7x+3=2x^2-(6+1)x+3=2x^2-6x-x+3=2x(x-3)-(x-3) =(x-3)(2x-1)
Answered by
1
Answer:
Roots are [7 + √73]/4 and [7 - √73]/4
Step-by-step explanation:
2x² - 7x - 3
Quadratic formula ---> (-b ± √b² - 4ac)/2a
=> [-(-7) ± √(-7)² - 4(2)(-3)]/2(2)
=> [7 ± √49 + 24]/4 (Minus and minus combine to become plus)
=> [7 ± √73]/4
∴ Roots are [7 + √73]/4 and [7 - √73]/4
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