Question

solve 2x square +7x-15=0​

Answer 1

Answer:

2x^2 + 7x - 15 = 0

Solve by splitting middle term

2x^2 × 15 = 30

3× 10 = 30

2x^2 + 10x - 3x - 15 = 0

2x( x + 5) - 3 (x+ 5)

(2x - 3 ) (x + 5)

2x - 3= 0

2x = 3

x = 3/2

x+ 5= 0

x= (-5)

Hence the required solution of this polynomial is 3/2 , (-5)

Answer 2

Answer:

x=-5 or 3/2

Step-by-step explanation:

2x square+7 x-15=0

2x square+ 10x-3 x-15=0

2x(x+5)-3(x+ 5)

( x+5) (2x-3)

x=-5 or x=3/2

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