Question

1.5x² + 72x - 150 = ?

Answer 1

Answer:

1.5x²+72x-150=0.

(150×1.5 = 225).

Now we have,

x²+72x-225=0.

Now,

-225

/\

75. -3

(72)

x+75/1.5=0 , x-3/1.5=0

X=-50, X=2

Therefore, X can't be in subtracted form so, X =2

substitute, 2 in the place of X,

1.5(2)²+72(2)-150=0

1.5(4)+72(2)-150=0

6+144-150=0

150-150=0

0=0

hence, X =2