Question

3. Find the integer/s such that twice its square is equal to 72.

Answer 1

Answer:

correct answer is 6

because (6)²=36×2=72

Answer 2

The integer is 6.

GIVEN

The twice of its square is equal to 72.

TO FIND

The integer.

SOLUTION

We can simply solve the above problem as follows;

Let the integer by x

It is given that two times the square of the integer is 72

So, The algebraic equation formed is as follows;

2x² = 72

Dividing the whole equation by 2

2x²/2 = 72/2

x² = 36

Square root of 36 is 6

x = √36

x = 6

Hence, The integer is 6.

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