Answer:
Step-by-step explanation:
remember that,
<u>if </u><u>a </u><u>side</u><u> </u><u>of </u><u>a</u><u> </u><u>triangle</u><u> </u><u>expanded</u><u> </u><u>exterior</u><u> </u><u>so </u><u>formed</u><u> </u><u>is </u><u>equal</u><u> to</u><u> </u><u>the</u><u> </u><u>sum </u><u>of</u><u> the</u><u> </u><u>two</u><u> </u><u>interior</u><u> </u><u>angles</u>
so,
simplify addition:
............................
a) -3
b) 5
c) -2
d) -6
h(3)=-6
sub 3 into all the positions which variable X is present