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Réponse:
1.
- h(4)
h(4)=10-2(4)
= 10-8
h(4)= 2
- h(3)
h(3)=10-2(3)
= 10-6
h(3)=4
2.
- 0
h(0)=10-2x
=> 10-2x=0
=> -2x=-10
=> x=-10/-2
=> x=5
- 4
h(4)=10-2x
=> 10-2x=4
=> -2x=4-10
=> -2x=-6
=> x=-6/-2
=> x=3
- -5
h(-5)=10-2x
=> 10-2x=-5
=> -2x=-5-10
=> -2x=-15
=> x=-15/-2
=> x=15/2
- √2
h(√2)=10-2x
=> 10-2x=√2
=> -2x=√2-10
=> x= √2/-2 -10/-2
=> x= -√2/2 +5