Find the roots.
2x 2 + 7x-15 =0

set 2x-3 equal to 0 and solve for x

x=3/2

set x+5 equal to 0 and solve for x

x=-5

the solution is the result of 2x-3=0 and x+5=0

x=3/2,-5

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1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

hope it ! (btw im in connections academy to, good luck! )