ГДЗ / ГДЗ Математика 7 клас Істер (2024) / ЧАСТИНА 2. ФОРМУЛИ СКОРОЧЕНОГО МНОЖЕННЯ / 37.30

ЧАСТИНА 2. ФОРМУЛИ СКОРОЧЕНОГО МНОЖЕННЯ » 34.11





« 34.10
34.11
34.12-34.13 »

Спростіть вираз: 1) (8x – 5)(8х + 5) + 25 = 64x2 – 25 + 25 = 64х2; 2) 9m2 + (5 – 3m)(5 + 3m) = 9m2 + 25 – 9m2 = 25; 3) (2b – 3)(3 + 2b) – 4b2 = (2b – 3)(2b + 3) – 4b2 = 4b2 – 9 – 4b2 = –9; 4) (4а + 7)(7 – 4а) – 49 = (7 + 4а)(7 – 4а) – 49 = 49 – 16а2 – 49 = –16а2.

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ЧАСТИНА 2. ФОРМУЛИ СКОРОЧЕНОГО МНОЖЕННЯ

32.1-32.3
32.4-32.5
32.6-32.7
32.8
32.9
32.10
32.11
32.12-32.13
32.14-31.15
32.16
32.17
32.18-32.19
32.20-32.21
32.22
32.23
32.24
32.25
32.26
32.27
32.28
32.29
32.30-32.31
32.32-32.33
32.34
32.35
32.36
32.37
32.38
32.39
32.40-32.41
32.42
32.43
32.44
32.45
32.46-32.47
32.48
33.1-33.2
33.3-33.4
33.5
33.6-33.7
33.8
33.9
33.10
33.11
33.12
33.13
33.14
33.15
33.16
33.17
33.18
33.19-33.20
33.21
33.22
33.23
33.24
33.25
33.26
33.27
33.28-33.29
33.30
34.1-34.2
34.3-34.4
34.5-34.6
34.7
34.8
34.9
34.10
34.11
34.12-34.13
34.14
34.15
34.16
34.17
34.18
34.19
34.20
34.21
34.22
34.23
34.24
34.25
34.26
34.27-34.28
34.29
34.30
34.31
34.32
35.1-35.2
35.3-35.4
35.5
35.6
35.7
35.8
35.9-35.10
35.11
35.12
35.13
35.14
35.15
35.16
35.17
35.18
35.19
35.20
35.21
35.22
35.23
35.24
35.25-35.26
35.27
35.28
35.29-35.30
35.31
36.1-36.3
36.4
36.5
36.6
36.7-36.8
36.9
36.10
36.11
36.12
36.13
36.14
36.15
36.16
36.17
36.18
36.19
36.20
36.21
36.22-36.23
36.24
36.25
36.26
36.27
36.28
36.29
37.1-37.2
37.3-37.4
37.5
37.6
37.7
37.8-37.9
37.10
37.11-37.12
37.13
37.14-37.15
37.16-37.17
37.18
37.19
37.20
37.21
37.22
37.23
37.24
37.25
37.26-37.27
37.28
37.29
37.30
37.31
37.32
37.33
37.34
37.35
37.36
37.37
37.38
37.39
37.40
37.41
37.42
37.43