Question

if a + b equal to 9 AB equal to 4 find the value of a ^ 2 + b ^ 2​

Answer 1

Answer:

A+B=9

AB= 4

(A+B)²=A²+B²+2AB

9²=A²+B²+2(4)

81=A²+B²+8

73=A²+B²

Step-by-step explanation:

Answer 2

140/9 answer hhhhhhhh