ExamPlay Dark Logo
היכנס

Mathematics for IGCSE & O level - Surds (Section 1 - No. 25)

If (x + √2)(x - √2) = 7, what is the value of x^2?
5
9
7
10

הֶסבֵּר

x^2 - 2 = 7 => x^2 = 9

הערות (0)

פִּרסוֹמֶת