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Use form x^2 + bx + c
b = -2
c = -63
find a pair of integers whose product equals c and sum equals b
so, find a product that equals -63 and a sum that equals -2
-9 + 7 = -2
-9 • 7 = -63
write in factored form ->
(x - 9)(x + 7)
Answer:
y=2.6
Step-by-step explanation:
y/4=1.3/2
cross product
4*1.3=y*2
5.2=2y
y=5.2/2
y=2.6
