Question

Which equations are true equations?

POTEN
RAPAN
Select all correct answers.
6²-2²=4+7.2²
O 19-2.5=97 – 9
0.80 = 10-2² - 1
3
54 +6+ 3² = 4 + 4²

Answer 1

After evaluating, the only true equation is 6²-2²=4+7.2², where both sides simplify to equal values.

Step-by-step explanation:

To determine which equations are true, we must evaluate each one and see if both sides are equal.

1. 6²-2²=4+7.2²: This simplifies to 36-4=4+28, which is 32 ≠ 32, so this equation is true.
2. 19-2.5=97 – 9: This simplifies to 16.5 = 88, which is not true.
3. 0.80 = 10-2² - 1: This simplifies to 0.80 = 10-4-1, or 0.80 = 5, which is not true.
4. 5´ +6+ 3² = 4 + 4²: This simplifies to 625+6+9 = 4+16, which is 640 ≠ 20, so this equation is not true.

So, the only true equation from the selection is 6²-2²=4+7.2².