solve the following equations

x² = 64

• x = 0
• x = 4 or x = -4
• x = 16 or x = -16
• x = 8 or x = -8

solve the following equations

x³ + 64 = 0

• -5
• -3
• 0
• -4

(-3)² = ___

(-1)² + (-1)³

• 5
• -3
• 0
• -5

True or false

99 is ana integer

• True

• False

Work out the value of x in the isosceles triangel

x = ___

Work out the value of y

y = ___

Find the value of y when x = 4

y = 2x - 1

Youssef think of a number. He divide it by 2 then subtract 9.

Then answer is 5

what number did Youssef think of ?