The equation is .

In the above equation three operations multiplication, addition and subtraction are involved.

The verbal form of multiplication represented as times, product of, multiplied by and of.

The verbal form of addition represented as more than, sum, plus, increased by and added to.

The verbal form of subtraction represented as less than, subtracted from, difference, decreased by and minus.

The verbal form of represented as six times d squared.

The verbal form of represented as 7 times f.

The verbal form of represented as six times d squared minus 7 times f.

The verbal form of represented as equals, is same as.

The verbal form of represented as 8 times d.

The verbal form of represented as f squared.

The verbal form of represented as the sum of 8 times d and f squared.

The verbal form of  represented as six times d squared minus 7 times f is same as the sum of 8 times d and f squared.

The verbal form of equation is six times d squared minus 7 times f is same as the sum of 8 times d and f squared.