Question

a) (h-6)(h+7)=

b) (e+3) (e-5)=

c) (d-4) (d-9)=

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Answer 1

a)

$(h - 6)(h + 7) = {h}^{2} + h - 42$

b)

$(e + 3)(e - 5) = {e}^{2} - 2e - 15$

c)

$(d - 4)(d - 9) = {d}^{2} - 13d + 36$