Question

25. If x = 7, then find the values of
a) x² + 1/2 b) x² + 1 /
2
cinglong division method​

Answer 1

Answer:

x²+1/2

7²+1/2

49+1/2

50/2

25

Answer 2

Answer:

a). 57 b). 57÷2

Step-by-step explanation:

a). a^2+b^2+2ab

x^2 + 1^2 + 2×x×1

7×7+1×1+2×1×7 = 57

b). 57÷2