Question

Try this,
Find the product using the formula.
a. 43 x 45
b. 32 x 34
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Answer 1

(40+3) (40+5) = 40x40+ 40(3+5) +3x5=16oo+320 +15=1935

(30+2) (30+4) =.30x30+30 (2+4) + 2x4 = 900+180+8=1088

a) 1935

b) 1088

Answer 2

Answer:

a, 1935

b, 1088

step by step explain:

A, 43x45 = (40+3) (40+5) =40x40+(3+5)+3x5=1600+320+15=1935

B, 32x34 = (30+2) (30+4) = 30x30+30(2+)+2x4=900+180+8=1088