Question

4.2cm
if x=2, y=3 and z=5 find the value of
i. x2 + 4z + z2
ii. 2 (x+y-z)
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Answer 1

Step-by-step explanation:

you may understand by that

Answer 2

Answer:

i. 49

ii. 0

Step-by-step explanation:

i. x²+4z+z²=(2)²+(4*5)+5² (X=2 ;. z=5 )

=4+20+25

=49

ii. 2(X+y-z)=2(2+3-5)

=2(0)

=0